Task: Answer the multiple-choice question.
Question: Which compound has a 20.712\% 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) CCc1cccc(NC(=O)C2CCCC2)c1
(b) CCC(NC(=S)NCc1ccccc1)C(=O)O
(c) COc1ccc(N2CCN(Cc3oc(CO)cc(=O)c3O)CC2)cc1
Answer: a. CCc1cccc(NC(=O)C2CCCC2)c1
{#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#}
CCc1cccc(NC(=O)C2CCCC2)c1
CCc1cccc(NC(=O)C2CCCC2)c1
N-(5-ethylphenyl)cyclopentanecarboxamide