Task: Answer the multiple choice question.
Question: Which compound exhibits a 15.719\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) COC(=O)Nc1[nH]ncc1[N+](=O)[O-]
(b) CC(C)(C)OC(=O)NCCCCCNC(=O)c1[nH]cnc1C(=O)Nc1ccccc1
Answer: a. COC(=O)Nc1[nH]ncc1[N+](=O)[O-]
{#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#}
COC(=O)Nc1[nH]ncc1[N+](=O)[O-]
COC(=O)Nc1[nH]ncc1[N+](=O)[O-]
methyl N-(4-nitro-1H-pyrazol-5-yl)carbamate