Final answer:
Potency is the maximal intensity of effect or response that can be produced by a drug. Increasing the dosage of a drug will not increase its efficacy, but can often increase the probability of an adverse reaction.
Step-by-step explanation:
The correct answer to this question is C. The first statement is true; the second statement is false.
Potency refers to the maximal intensity of effect or response that can be produced by a drug. It is determined by the drug's affinity for its target receptor and its ability to activate that receptor. Increasing the dosage of a drug will not increase its efficacy, which is the ability of the drug to produce a desired therapeutic effect. However, administering more of the drug can often increase the probability of an adverse reaction, such as side effects.