Task: Answer the MCQ question.
Query: Which drug has a 10.291\% 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=C(COc1ccccc1Cl)c1ccc[nH]1
[b] Cc1ccc2nc(NC(=O)CN3CCN(c4ccccn4)CC3)sc2c1
Answer: a. O=C(COc1ccccc1Cl)c1ccc[nH]1
{#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(COc1ccccc1Cl)c1ccc[nH]1
O=C(COc1ccccc1Cl)c1ccc[nH]1
2-(2-chlorophenoxy)-1-(1H-pyrrol-2-yl)ethanone