Question

How did the production of penicillin change during World War II?

Different types of penicillin were developed.
Stronger types of penicillin were developed.
Larger quantities of penicillin were able to be made.
Smaller quantities of penicillin were able to be made.

Answer 1

C is the answer to your question

Answer 2

It would be "Larger quantities of penicillin were be able to be made".