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 additional words.
Options:
a: NN=C(c1ccccc1)c1cccs1
b: CCCCCC=C(c1cc(Cl)c(OC)c(C(N)=O)c1)c1cc(Cl)c(OC)c(C(N)=O)c1
c: COc1ccc2[nH]c(Br)c(CCNC(C)=O)c2c1
d: [O-][n+]1cn[n+]([O-])c2ccccc21
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}