Answer:
The several kinds of penicillin synthesized by various species of the mold Penicillium may be divided into two classes: the naturally occurring penicillins (those formed during the process of mold fermentation) and the semisynthetic penicillins (those in which the structure of a chemical substance—6-aminopenicillanic ...
C) is my guess hope it helps
"<span>African Americans were considered second class citizens" would be the best option, since although they were technically free in the eyes of the law, there was still a great deal of racism in the country that inhibited them from finding jobs. </span>
The answer is D providing additional good and service