<p>Pg. 480 #28</p>
<p>The quality of multivitamin tablets is determined by how long its potency can be protected by the manufacturer's coating material. No Error</p>
<p>The answer is (C) its but I can't figure out why. Why is it wrong?</p>
<p>the subject of the sentence is quality. So replacing it with its is wrong. “The potency can be protected” refers to the multivitamin tablets not the quality</p>
<p>so what should replace its to make the sentence correct?</p>
<p>Actually it’s because “it” is ambiguous. It does not specify if the antecedent is “quality” or “tablet”</p>
<p>ohhh, that makes sense. thanks</p>