Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocker?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a Cn1c(CN2CCCCC2)nc2cc(NS(=O)(=O)c3ccc(Cl)cc3)ccc21
b O=C(Nc1nc(-c2ccc(F)cc2)cs1)c1cnccn1
c Cc1ccc(N(Cc2ccccc2)C(=O)c2ccc(C)c(S(=O)(=O)N3CCOCC3)c2)cc1
Answer: a
Task: Please answer the multiple choice question.
Question: Which molecules are {herg_inhib#not &NULL}a {herg_inhib__names__noun}?
Constraint: You must select none, one or more options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%herg_inhib%}
Answer: {%multiple_choice_result}