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. CCCCCCCCCCCCC(=O)CCCCC(=O)O
b. CN(C)C=C1C=CC=C1
c. O=C(C=C1Nc2ccc([N+](=O)[O-])cc2N=C1NC12CC3CC(CC(C3)C1)C2)c1ccccc1
d. C=CCOC(OCC=C)C(Br)=CC
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}