If added after sentence three in the excerpt, the sentence that would most improve the conclusion is: (Option B)
<h3>Why does option B best improve the conclusion?</h3>
Option B best improves the conclusion because it contains elements that adequately summarize the thoughts of the original text.
Option B states:
"Because students would not need to spend so much time reviewing previously covered material, they would then have more time to master new concepts."
Learn more about conclusions at:
brainly.com/question/24542637
