A scientific hypothesis must be constructed with which of the following characteristics?

A) It is always provable and clearly states what is already known to be fact.
B) It provides a reasonable explanation to a question and is consistent with current observations; it must also be testable and falsifiable.
C) It provides an explanation consistent with accepted theological ideas and does not need to be tested.
D) It does not require testing by experimentation or additional observations. It is not falsifiable.