Task: Answer the multiple choice question.
Question: Which compound exhibits a 9.873\% 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 COc1ccc(CCc2cc(OC)cc(=O)o2)cc1
b CCN(C(=O)COC(=O)c1cc(NS(=O)(=O)c2ccc(Cl)c([N+](=O)[O-])c2)ccc1O)C1CCCCC1
Answer: a. COc1ccc(CCc2cc(OC)cc(=O)o2)cc1
{#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#}
COc1ccc(CCc2cc(OC)cc(=O)o2)cc1
COc1ccc(CCc2cc(OC)cc(=O)o2)cc1
4-methoxy-6-[2-(4-methoxyphenyl)ethyl]pyran-2-one