Select the correct statement:
A. Penicillin is not the most useful drugs invented by man.
B. Penicillin is one of the most useful drugs invented by man.
C. Penicillin has not been able to cure Corona virus.
D. Vaccine for the Corona virus is still at the testing stage.
Answer:B
Select the correct statement:
A. Penicillin is not the most useful drugs invented by man. B. Penicillin is one of the most useful drugs invented by man. C. Penicillin has not been able to cure Corona virus. D. Vaccine for the Corona virus is still at the testing stage.