The correct answer is B) Consistency: because student consistently attend, they will benefit
Bethany conducts research and finds that students who attend class get better grades than those who skip. She develops a theory that says that students who attend benefit from class lectures and discussion and will generally get superior grades. The element of a scientific theory that is represented here is consistency: because student consistently attends, they will benefit.
The scientific theory needs to prove that something is real or valid by proving it. First, the scientist collects evidence to study, then it formulates the hypothesis. The scientist elaborates predictions that can be tested through experimentation. The result has to be constant. Consistency means that the desired result comes every time that the scientist examines it.