After reading a newspaper article discussing research demonstrating that regular aerobic exercise improved a person's memory performance, olga wondered if lifting weights daily would have the same effect. olga has generated a(n):

The correct answer is - a hypothesis.

Explanation:

A hypothesis is assumed or proposed explanation established on some prior known evidence, study or experiments. It is an explanation that is formed to test if the assumption or idea made on prior knowledge is valid or not.

As it mentions that Olga assumed that lifting weights have a similar effect as aerobic exercise has, which is an improvement in memory is based on the research.

Thus, the correct answer is - a hypothesis.

which of what? i am confused