Marcy should set aside the time on Sundays to read and review the new material so that she can get better grades. Thus, option C is the correct option.
<h3>What is critical thinking?</h3>
Critical thinking is an evaluation and analytical method to observe, analyze the arguments to judge, and reach a conclusion. It actively evaluates the information.
Marcy can raise her grades by studying and analyzing the material that her teacher gave so that her functionality and intellectual ability increase resulting in her solving the problems.
Therefore, option C. Marcy should set some time aside.
Learn more about critical thinking here:
brainly.com/question/12980631
#SPJ1