Task: Answer the multiple choice question.
Question: Which compound has a 4.712\% 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 additional words.
Options:
a: O=c1c2ccccc2nc(-c2ccoc2)n1-c1ccccc1Cl
b: O=C(c1ncc[nH]1)c1ccco1
c: Cc1c(C)c2ccc(OCC(=O)NC(Cc3ccc(Cl)cc3)C(=O)O)cc2oc1=O
Answer: a. O=c1c2ccccc2nc(-c2ccoc2)n1-c1ccccc1Cl
{#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#}
O=c1c2ccccc2nc(-c2ccoc2)n1-c1ccccc1Cl
O=c1c2ccccc2nc(-c2ccoc2)n1-c1ccccc1Cl
3-(2-chlorophenyl)-2-(furan-3-yl)quinazolin-4-one