A Student Learns That the Organism Causing Syphilis, T

A student learns that the organism causing syphilis, T. pallidum, is easily treated and killed using penicillin. He assumes this will also be true for N. gonorrhoeae, the organism that causes gonorrhea since it is also a bacterium. Is he correct?

A) Yes, any bacterial STI can be treated with antibiotics such as penicillin.
B) Yes, the organisms causing both syphilis and gonorrhea can be killed with penicillin.
C) No, gonorrhea is resistant to penicillin but can be treated with most other antibiotics.
D) No, gonorrhea has developed drug resistance to several different classes of antibiotics, including penicillin.
E) No, gonorrhea cannot be treated with penicillin or other antibiotics because it is not caused by a bacterium.