Who appears to have fathered one or more children with his slave?
a. benjamin rush.
b. thomas jefferson.
c. ben franklin.
d. john adams.
e. george washington.

b. Thomas Jefferson.

Explanation:

Thomas Jefferson though consider blacks as biologically inferior, helped many slaves. There are many evidences that proves that after the death of his wife Martha Jefferson he was in a relationship with Sally Hemings a woman of mixed race and they had at-least one or as many as six slaves. Sally remained enslaved by Jefferson until her death and the mystery of Jefferson and Hemings is still open to debate even today.

i think the answer is true : ))