The federal government responded to Governor Wallace’s decision to block the registrar's doorway at the University of Alabama by sending troops to ensure African Americans could enroll.
civil rights leaders to give speeches on campus.
financial aid to ensure the law was followed.
troops to limit the effects of rioting students.

troops to ensure African Americans could enroll.

Explanation:

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it provided for selection of government employees through competitive examinations. it also made it unlawful to fire or demote covered employees for political reasons or to require them to give political service or payment, and it set up a civil service commission to enforce the law.

explanation:

the correct answer is:

b) a rich merchant.