Task: Answer the multiple-choice question.
Query: Which drug exhibits a 26.673% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a COc1ccccc1NC(=O)c1ccc(-c2ccccc2[N+](=O)[O-])o1
b Cc1ccccc1CN(C)CC(=O)Nc1cccc(S(=O)(=O)N(C)c2ccccc2)c1
c CCN(CC)CCN1C(=O)C(=O)/C(=C(/O)c2ccc(F)cc2)C1c1cccnc1
d Cl.OC(COc1ccc(Cl)c2ccccc12)CN1CCN(c2ccccn2)CC1
Answer: a. COc1ccccc1NC(=O)c1ccc(-c2ccccc2[N+](=O)[O-])o1
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
COc1ccccc1NC(=O)c1ccc(-c2ccccc2[N+](=O)[O-])o1
COc1ccccc1NC(=O)c1ccc(-c2ccccc2[N+](=O)[O-])o1
N-(2-methoxyphenyl)-5-(2-nitrophenyl)furan-2-carboxamide