In the Past Few Years, the Use of Zinc Has

In the past few years, the use of zinc has greatly increased. A client is considering taking a zinc preparation. Based on current knowledge, which statement made by the client indicates a need for more teaching?

A) "Large doses of zinc may decrease the 'good' cholesterol."
B) "Zinc may be taken with all drugs, including antibiotics."
C) "Zinc is thought by some to alleviate the common cold."
D) "Large doses of zinc may cause copper deficiency."