The helping verbs are has, have had, do, does, did, be, am, is, are, was, were, been, can, could, shall, should, will, would, may, ... C - has the helping verb -- and is a VERY BADLY ...
There are two correctly punctuated sentences here: 1. That's the other thing I learned: being active is just as important as eating better foods. 2. Over the years, many of us have read the words of Henry B. Adams: "A teacher affects eternity; sge can never tell where her influence stops."
Is this what you mean: "Self-confidence is the most important quality forA. consideration. B. communication. C. building new relationships. D. good listening skills."