Task: Answer the MCQ question.
Question: Which compound has a 21.496% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a: O=C(c1cc2cc([N+](=O)[O-])ccc2oc1=O)N1CCOCC1
b: Cc1ccc(NC2CC(=O)N(c3ccc(C)cc3)C2=O)cc1
c: Nc1cc(=O)[nH]n1C1CCCC1
Answer: c. Nc1cc(=O)[nH]n1C1CCCC1
{#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#}
Nc1cc(=O)[nH]n1C1CCCC1
Nc1cc(=O)[nH]n1C1CCCC1
3-amino-2-cyclopentyl-1H-pyrazol-5-one