Task: Please answer the multiple choice question.
Question: Which molecules are active against the human immunodeficiency virus?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a: NP(=O)(OCc1ccc([N+](=O)[O-])o1)N(CCBr)CCBr
b: CCOC(=O)C1(C)CCc2sc(N)c(C#N)c21
c: COc1ccc(NC(C)=O)cc1N1C(=O)C(=Cc2cc(OC)c(OC)c(OC)c2)SC1c1ccccc1
d: CC(C)C(OC(=O)c1ccc(NCc2cc(O)ccc2O)cc1)C(C)C
Answer: b
Task: Please answer the multiple choice question.
Question: Which molecules are {activity_HIV#not &NULL}{activity_HIV__names__adjective}?
Constraint: You must select none, one or more options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%activity_HIV%}
Answer: {%multiple_choice_result}