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) O=C(NCCc1c(-c2ccccc2)[nH]c2ccccc12)C(F)(F)F
b) O=c1c2ccccc2[se]n1-c1cccnc1
c) C=C1CC(COc2ccc3ccc(=O)oc3c2)(c2ccccc2)OC1=O
d) CC(C)(C)NN=C(Cc1occc(=O)c1O)C(=O)Nc1ccc([N+](=O)[O-])cc1[N+](=O)[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}