Task: Answer the multiple-choice question.
Question: Which compound exhibits a 21.802% 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: Cc1c(C(=O)O)cccc1[N+](=O)[O-]
b: CCN(CC)S(=O)(=O)c1cc(C(=O)OCC(=O)c2ccc3c(c2)NC(=O)CO3)ccc1F
c: O=C(CCCN1C(=O)S/C(=C\C=C\c2ccccc2)C1=O)Nc1ccc(C(=O)O)cc1
d: CN(C)c1ccccc1C(=O)c1ccccc1N(C)C
Answer: a. Cc1c(C(=O)O)cccc1[N+](=O)[O-]
{#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#}
Cc1c(C(=O)O)cccc1[N+](=O)[O-]
Cc1c(C(=O)O)cccc1[N+](=O)[O-]
2-methyl-3-nitrocyclohexa-1,3,5-triene-1-carboxylicacid