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, c, or d without using any other words.
Options:
a: COc1ccc(NS(=O)(=O)c2cc(NC(=O)/C=C/c3cc(OC)ccc3OC)ccc2N2CCCCC2)cc1
b: Cc1cc(C)n2nc[n+](C)c2n1.[I-]
c: Cc1cccc(NC(=O)CCc2c(C)nn(-c3ccc(N4CCCCC4)nn3)c2C)c1
d: O=C(O)C(=O)O.O=C(c1ccccc1)c1ccc(OCC(O)CNCc2ccc(F)cc2)cc1
Answer: d
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}