Help me answer my business ethics assignment please

CALTEX In South Africa (SA) apartheid legislation was passed in 1948. These laws established the supremacy of the White race who comprised 20 percent of the population over the larger Black population. The apartheid system legalized racial discrimination in all aspect of life. Under apartheid, the black population was deprived of all political and civil rights. As such they could not vote, nor could they unionise nor bargain collectively. Blacks had no right to freedom of assembly, nor right to habeas corpus. The society was racially segregated; interracial marriages were illegal, Blacks could not hold supervisory positions over whites, and were forced to live in separate areas. Racial segregation also occurred in the educational system, with Blacks having to attend inferior schools. Over the years, Blacks repeatedly demonstrated against the brutal regime, however, the South African government responded with widespread killings, and arrests. The White government killed hundreds of young Black activists and jailed thousands of others. Opposition Black parties were outlawed and their leaders imprisoned. The policies of the Apartheid government remained in place until the early 1990s. During the 1980s, at the height of the Apartheid regime, Caltex and American oil company operated several refineries in South Africa. These refineries were jointly owned by Texaco and Standard Oil. Caltex continued to expand their operations, therefore providing SA with the petroleum needed to run its economy. Many stockholders of Texaco & Standard Oil opposed allowing Caltex to continue its refinery operations in SA. Their opposition was based on the fact that: "Nonwhites in SA are rightless persons in the land of their birth. The Black S African cannot vote, own land and may not have his family with him unless he has government permission. By investing in SA, American companies inevitable strengthen the status quo of white supremacy. These companies allow for the building of a nation of whites only." The management of Caltex, however felt that they should continue doing business in SA. The company argued that although their opposition provided a strategic resource to the S African government, its operation also helped Black S Africans, particularly the company's own Black workers toward whom the company had special responsibilities. According to Caltex: "Texaco believes that continued Caltex operation in SA is the best interests of Caltex's employees of all races in SA. In managements opinion, if Caltex were to withdraw from SA... this would endanger the prospects for the future of all Caltex employees in SA regardless of race. We are convinced that the resulting dislocation and hardship would fall most heavily on the non-white communities." Caltex managers were of the opinion that foreign corporations in SA had helped to provide Black S. Africans to significantly increase their income. (Summarised from CALTEX in South Africa - Velasquez: Concepts & Cases) CASE QUESTIONS: a. In your view if Caltex remains would they be morally responsible for the plight of the Black South Africans. b. If companies exist to make a profit, should they be concerned with the social conditions that exist. Support your