There Are Fewer Antifungal, Antiprotozoan, and Antihelminthic Drugs Compared to Antibacterial

There are fewer antifungal, antiprotozoan, and antihelminthic drugs compared to antibacterial drugs because fungi, protozoa, and helminths _______.

A) do not cause many human infections
B) are not affected by antimicrobials
C) are so similar to human cells that drug selective toxicity is difficult to achieve
D) are parasites found inside human cells
E) have fewer target sites in their cells compared to bacteria