Task: Please answer the multiple choice question.
Question: Which molecules are active against HIV?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
[a] CN(C)S(=O)(=O)C(c1ccccc1)C1(O)CCCCC1
[b] COC1=CC2(C=CC1=O)CCC(=O)O2
[c] CCOC(=O)c1sc2c(c1OC(=O)c1ccco1)c(=O)n(-c1ccccc1)c(=S)n2-c1ccccc1
[d] Cc1cn(COCCS(=O)c2ccccc2)c(=O)[nH]c1=O
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}