Delltrix Corp., a customer support provider, needs operators who are bilingual in English and Spanish. A few applicants of Spanish origin are rejected because of their poor English language proficiency. The applicants file a disparate impact case with the Equal Employment Opportunity Commission against Delltrix on the grounds of discrimination based on nationality. Which of the following defenses is Delltrix most likely to use in this case? A. the defense of undue hardship B. the contributory negligence defense OC. the comparative negligence defense D. the assumption-of-risk defense E. the business necessity defense 8