C. Inspirational.
Step-by-step explanation:
Thomas Paine's "The Crisis No. 1" is a political pamphlet that gives an inspirational 'excuse' or reason for America to wage war against the colonist British government. The pamphlet would become one of the inspiring and motivating for the thirteen colonies to fight for their independence.
The pamphlet states that fighting against British rule is one of the best things that Americans can do for themselves. Moreover, he went on to implore "to those who have nobly stood, and are yet determined to stand the matter out: I call not upon a few, but upon all: not in this state or that state, but on every state."
Thus, the correct answer is option C.