Adaughter sees a commercial promoting a new medication for a problem her father has. discussing the medication with her dad

a) gives him an opportunity to learn more about the medication.
b) guarantees his disease is cured.
c) will definitely his problem.

What is the main difference between trace elements and the main elements that make up the body? 1) main elements consist of heavier atoms. 2) trace elements are only needed in small amounts. 3) trace elements consist of heavier atoms. 4) main elements are only needed in small amounts.