Some species of Bacteria are susceptible to the antibiotic penicillin whereas Fungi are not. Which one of the following is the best explanation for this?

A.   Fungi do not have a cell wall.

B.   Fungi are structurally different to bacteria, making penicillins ineffective. 

C.   Fungi do not have specialised structures such as flagella.

D.   Fungi are not pathogens and thus antibiotics are not designed to target them.

(i)  Which response (A-D) is the best explanation? (1 mark)

(ii ) Briefly explain your reasoning for your choice (2 marks)