Problem statement: Answer the MCQ question.
Question: Which compound has a 12.331\% 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 additional words.
Options:
a COc1ccccc1/C=C/C(=O)NCCC1=CCCCC1
b O=C(NCc1ccc(Cl)cc1)c1cc2ccccc2oc1=O
Answer: a. COc1ccccc1/C=C/C(=O)NCCC1=CCCCC1
{#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#}
COc1ccccc1/C=C/C(=O)NCCC1=CCCCC1
COc1ccccc1/C=C/C(=O)NCCC1=CCCCC1
(E)-N-[2-(cyclohexen-1-yl)ethyl]-3-(2-methoxyphenyl)prop-2-enamide