Question: NAME_1 has a thin clear discharge coming from his penis and mild discomfort when he urinates. He is most likely suffering from _______ and should be treated with ________.
A: gonorrhea penicillin
B: gonorrhea tetracycline
C: chlamydia penicillin
D: chlamydia tetracycline
Please eliminate two incorrect options first, then think it step by step and choose the most proper one option.