What Honor Did Benjamin Banneker Receive in Recognition of His

What honor did Benjamin Banneker receive in recognition of his considerable skills in mathematics and mechanics?

A) He was appointed surveyor of the boundaries and streets of the District of Columbia.
B) He was appointed by the Secretary of War to establish a system of fortifications along the country's Atlantic coast.
C) He was appointed by Thomas Jefferson as the head professor of mathematics and astronomy at Jefferson's new school,the University of Virginia.
D) He was appointed a major general in the U.S.Army and given overall command of the nation's artillery corps.