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 other words.
Options:
(a) Cc1cc(O)nc(NN2C(Cl)C(=O)C2c2cccc(Cl)c2)n1
(b) O=c1c2ccccc2[se]n1-c1ccccn1
(c) CCN1C(=O)C(N2CCCCC2)SC1=CC(=O)O
(d) I.O=CSC(=Nc1ccc(Cl)cc1)NC(=O)COc1ccc(Cl)cc1
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}