Task: Answer the multiple-choice question.
Query: Which drug exhibits a 5.615% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: O=C(c1ccc([N+](=O)[O-])cc1[N+](=O)[O-])N1CCCC1
b: Cn1c(=O)c2c(nc(OCC3COC(C)(C)O3)n2Cc2ccccc2F)n(C)c1=O
Answer: a. O=C(c1ccc([N+](=O)[O-])cc1[N+](=O)[O-])N1CCCC1
{#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=C(c1ccc([N+](=O)[O-])cc1[N+](=O)[O-])N1CCCC1
O=C(c1ccc([N+](=O)[O-])cc1[N+](=O)[O-])N1CCCC1
(2,4-dinitrophenyl)-pyrrolidin-1-ylmethanone