Problem statement: Answer the multiple-choice question.
Query: Which compound has a 0.020\% human ether-à-go-go related gene (hERG) inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a: COc1ccc(C(O)(C(=O)NNc2ccc(C)cc2)c2cccs2)cc1
b: CSc1ncccc1C(=O)NCc1ccccc1Cl
c: O=C(COC(=O)c1ccc([N+](=O)[O-])cc1Cl)NCc1ccco1
Answer: b. CSc1ncccc1C(=O)NCc1ccccc1Cl
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_1uM#}{herg_central_at_1uM__units} {herg_central_at_1uM__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_central_at_1uM%}
Answer: {%multiple_choice_result}. {SMILES#}
CSc1ncccc1C(=O)NCc1ccccc1Cl
CSc1ncccc1C(=O)NCc1ccccc1Cl
N-[(2-chlorophenyl)methyl]-2-methylsulfanylpyridine-3-carboxamide