The best answer is "Estudiar," as it means "to study" and indicates what Elena needs to do for her test.
The best answer is "Estudiar."
The best answer is "Estudiar." This is because the verb "estudiar" means "to study" in English, which is something Elena needs to do in order to prepare for her test. To determine the answer, you can look at the options provided and identify which verb relates to the action of preparing for a test. In this case, "estudiar" is the verb that best fits that description.
