Task: Answer the multiple-choice question.
Question: Which compound exhibits a 18.037% 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=c1cc(-c2cccc([N+](=O)[O-])c2)[nH][nH]1
[b] O=C(NCCCN1CCOCC1)c1ccccc1N1C(=O)[C@@H]2Cc3c([nH]c4ccccc34)C(c3ccc(F)cc3)N2C1=O
[c] Cc1onc(-c2ccccc2Cl)c1C(=O)NCc1nc(-c2ccccc2)no1
Answer: a. O=c1cc(-c2cccc([N+](=O)[O-])c2)[nH][nH]1
{#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#}
O=c1cc(-c2cccc([N+](=O)[O-])c2)[nH][nH]1
O=c1cc(-c2cccc([N+](=O)[O-])c2)[nH][nH]1
oxido-oxo-[3-(5-oxo-1,2-dihydropyrazol-3-yl)phenyl]azanium