Task: Answer the multiple choice question.
Question: Which compound exhibits a 8.783\% 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 or b without using any other words.
Options:
(a) O=C(NCCc1ccccc1)c1cnc2ccccc2n1
(b) Cc1cc2c3c([nH]c2cc1S(=O)(=O)NCCCOC(C)C)CC(C)(C)CC3=O
Answer: a. O=C(NCCc1ccccc1)c1cnc2ccccc2n1
{#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#}
O=C(NCCc1ccccc1)c1cnc2ccccc2n1
O=C(NCCc1ccccc1)c1cnc2ccccc2n1
N-(2-phenylethyl)quinoxaline-2-carboxamide