Task: Answer the multiple choice question.
Question: Which compound exhibits a 2.751\% human ether-à-go-go related gene (hERG) inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a: COc1ccccc1CNC(=O)C(=O)NCC1CCCO1
b: O=C(NCc1cccnc1)C(=O)Nc1ccc([N+](=O)[O-])cc1
c: O=C(CSc1nnc(-c2ccccc2O)o1)NC1CCCCC1
Answer: a. COc1ccccc1CNC(=O)C(=O)NCC1CCCO1
{#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#}
COc1ccccc1CNC(=O)C(=O)NCC1CCCO1
COc1ccccc1CNC(=O)C(=O)NCC1CCCO1
N'-[(2-methoxyphenyl)methyl]-N-(oxolan-2-ylmethyl)oxamide