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. COC(=O)c1ccc(NCC2=C(Br)C(=O)C=CC2=O)cc1Cl
b. CN1C(=O)CC(Sc2ccccc2)c2ccccc21
c. CCCCCSCCCCCCCC(=O)OCC1OC(n2cc(C)c(=O)[nH]c2=O)CC1N=[N+]=[N-]
d. CC(=O)OC1=c2ccccc2=C(O)C2C1C=NN2C(C)=O
Answer: c
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}