Task: Answer the MCQ question.
Question: Which compound exhibits a 9.719\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a: O=c1ccccn1CCOc1ccc(Cl)cc1
b: COc1cccc(-c2noc(Cn3nc(C(=O)O)c4ccccc4c3=O)n2)c1
Answer: a. O=c1ccccn1CCOc1ccc(Cl)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#}
O=c1ccccn1CCOc1ccc(Cl)cc1
O=c1ccccn1CCOc1ccc(Cl)cc1
1-[2-(4-chlorophenoxy)ethyl]pyridin-2-one