<span><em>Its A You should exercise for at least 20 minutes, five times a week to maintain cardiorespiratory endurance.</em></span>
Answer: D: to add detail
Explanation: A nonrestrictive clause usually includes additional information or detail about a subject or an object in the sentence.
<span>A literal question can be answered solely by referencing the text itself. An example of a literal question for the above text is, "Why would Mr. Yallow want to ruin the system?"</span>
Stating the truth or giving advice.
