Task: Answer the multiple-choice question.
Question: What is the hERG inhibition at a concentration of 10uM of a compound with the SMILES O=C(NC1CCN(Cc2ccccc2)CC1)c1ccc(N2CC3CC(C2)c2cccc(=O)n2C3)c([N+](=O)[O-])c1?
Constraint: You must return none, one or more options from a, b, or c without using any other words.
Options:
a: 18.358
b: 2.493
c: -22.081
Answer: a. 18.358%.
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: What is the {herg_central_at_10uM__names__noun} of a {#compound|drug!} with the {SMILES__description} {SMILES#}?
Constraint: You must return none, one or more options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{herg_central_at_10uM%SMILES%}
Answer: {%multiple_choice_result}. {herg_central_at_10uM#}{herg_central_at_10uM__units}.
O=C(NC1CCN(Cc2ccccc2)CC1)c1ccc(N2CC3CC(C2)c2cccc(=O)n2C3)c([N+](=O)[O-])c1
O=C(NC1CCN(Cc2ccccc2)CC1)c1ccc(N2CC3CC(C2)c2cccc(=O)n2C3)c([N+](=O)[O-])c1
N-(1-benzylpiperidin-4-yl)-3-nitro-4-(6-oxo-7,11-diazatricyclo[7.3.1.02,7]trideca-2,4-dien-11-yl)benzamide