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, or c without using any additional words.
Options:
a: CN1CCCC2C3CCC4=C(O)C(=O)CCC4(C)C3CCC21C
b: CC1SC(c2c(F)cccc2F)n2c1nc1ccccc12
c: O=C(c1nc2ccc([N+](=O)[O-])cc2nc1O)C(O)c1ccc2c(c1)OCO2
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}