I need someone to help me answer these questions!!!!

Imagine you read an advertisement for new, botanical cancer drug. The company reports that the mean cell viability for cancer cells grown in the absence of the drug was 100% versus a mean of 50% cell viability for cancer cells grown in the presence of the drug. Based on this information, you can conclude Select one: a. They replicated their results at least twice b. There was a significant difference in the means for the two samples c There was not a significant difference in the means for the two samples d. The drug is an effective cancer drug e The drug is not an effective cancer drug