Mark may be eligible for an H-1B visa. This visa category is for foreign workers in specialty occupations that require theoretical or technical expertise in specialized fields such as science, engineering, or computer programming.
Mark's Business Administration degree may qualify him for this visa category. If Mark who has been studying in the US on an F1 visa has graduated and received a job offer to work in the country, he would typically need to apply for a work visa. The most common work visa for skilled professionals is the H-1B visa. This visa allows employers in the US to temporarily hire foreign workers in specialty occupations. It is important to note that the H-1B visa has specific eligibility requirements, including a minimum level of education and a job offer from a US employer. The employer will usually sponsor the individual for the H-1B visa.

reply to the post above with the following.

You should support your second and third posts with citation to authority.  Opinion alone is not enough.  Reliable web sources can be used as authority, but be sure to include the web address at which the source can be located to avoid loss of points