Problem statement: Answer the multiple choice question.
Query: Which drug has a -4.137% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a: CCOn1c(=O)c(-c2cccs2)[n+]([O-])c2ccccc21
b: Cc1ccc(NC(=O)c2ccc(N/N=C/c3cccc(O)c3)c([N+](=O)[O-])c2)cc1
c: COc1ccc(Cc2ccc(OC)c(N)c2)cc1N
Answer: a. CCOn1c(=O)c(-c2cccs2)[n+]([O-])c2ccccc21
{#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#}
CCOn1c(=O)c(-c2cccs2)[n+]([O-])c2ccccc21
CCOn1c(=O)c(-c2cccs2)[n+]([O-])c2ccccc21
1-ethoxy-4-oxido-3-(thiophen-2-yl)quinoxalin-4-ium-2-one