If worms prefer dark, damp places then the worms will move to the dark side of the box. this is an example of a(n)
a) hypothesis.
b) inference.
c) law.
d) theory.

A) hypothesis.

Explanation:

Hypotheses are conjectures, speculations, predictions about a particular phenomenon of nature and how it behaves. Assumptions must be tested, which is usually accomplished through experimentation.

On the other hand theories are well-founded explanations for describing events that occur in nature. They involve thoroughly tested hypotheses, facts and laws. A theory may sound like a definitive explanation, but it may be overturned over the years.