Aresearcher invented a new drug for baldness and performed a randomized experiment to see if the new drug worked better than the old drug, rogaine. the new drug performed better in the experiment. the p-value was 0.21.

which of the following statements most accurately describes the implication of that p-value?
a. the new drug is significantly better than rogaine.
b. we can reject the null hypothesis
c. it is plausible that the superior performance of the new drug was due to chance.
d. rogaine is significantly better than the new drug.