According to the Textbook, Why Can We Reject a Hypothesis

Multiple Choice

According to the textbook, why can we reject a hypothesis but never "prove" a hypothesis?

A) A hypothesis about causation projects into the future so there is no way to verify it conclusively.
B) Relationships among social variables are imperfect, so it is possible to contradict a hypothesis.
C) Both a and b
D) Neither a nor b