<p>The moose and the wapiti are the largest members of the deer family, each of them are found in North America, Europe, and Asia.</p>
<p>A. family, each of them are
B. family, both are
C. family, which are
D. family and are both
E. family and each are</p>
<p>The correct answer is D, but both answers C and D seem right to me.
why isn't it C?</p>