Question

which is the best description of a scientific theory?
a statement about how two different variables are related
a collection of laws that are explained the same way
an explanation of many observations and tested hypotheses
an accepted fact that has always been observed to be true

Explanation:

A scientific theory is well - supported by evidence, integrating multiple observations and verified hypotheses, not just a simple statement about variable relations, a collection of similarly - explained laws, or an absolute fact.

Answer:

an explanation of many observations and tested hypotheses