WR Identify Error Question

<p>The volunteers, upon discovering that a large number of the village children were infected by parasites from unclean drinking water, decided to make the well-digging project their highest priority. No error</p>

<p>I thought the answer was C "were" since the subject of the verb is "a large number" But the correct answer says E No error. Explanation?</p>

<p>Tricky rule: “A number of” is plural. “The number of” is singular.</p>

<p>:| Well I’m happy I know now thanks!</p>

<p>the village children are the ones infected = plural</p>

<p>not to mention, “village children was infected” would sound ridiculous.</p>