The Mayflower compact was agreed to and signed by passenger on the Mayflower

41 male

Explanation:

It was signed by nearly all the adult male colonists (41males)

The correct answer is C) They were African American soldiers of the Ninth and Tenth Cavalries.

The buffalo soldiers that fought in Texas were African American soldiers of the Ninth and Tenth Cavalries.

After the American Civil War, the Buffalo soldiers served on the Western frontier, after being formed in 1866 in Forth Leavenworth, Kansas.  They were black men of the Ninth and Tenth Cavalries fought with determination and bravery to repel Indian attacks. After them, two more regiments were formed under the same name: the 24th Infantry Regiment and the 25th Infantry Regiment.