Task: Answer the MCQ question.
Question: Which compound exhibits a 18.824\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
(a) CCOC(=O)N1CCN(C(=O)CSc2nnc(-c3ccc(C)c(C)c3)o2)CC1
(b) COc1ccc(CC(=O)Nc2ncc([N+](=O)[O-])s2)cc1OC
(c) O=C1N/C(=N/N=C/c2ccc(F)cc2)SC1c1ccccc1
(d) Cc1c(-c2cccc(Cl)c2)nc2ccccc2c1C(=O)OCC(=O)Nc1ccc2c(c1)OCO2
Answer: b. COc1ccc(CC(=O)Nc2ncc([N+](=O)[O-])s2)cc1OC
{#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#}
COc1ccc(CC(=O)Nc2ncc([N+](=O)[O-])s2)cc1OC
COc1ccc(CC(=O)Nc2ncc([N+](=O)[O-])s2)cc1OC
2-(3,4-dimethoxyphenyl)-N-(5-nitro-1,3-thiazol-2-yl)acetamide