Problem statement: Answer the MCQ question.
Query: Which drug exhibits a 2.475\% 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] CC(=NCc1ccco1)C1=C(O)c2ccccc2C1=O
[b] O=C(NC1CC1)C1C2C3C4CC5C3C5C4C12
Answer: a. CC(=NCc1ccco1)C1=C(O)c2ccccc2C1=O
{#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#}
CC(=NCc1ccco1)C1=C(O)c2ccccc2C1=O
CC(=NCc1ccco1)C1=C(O)c2ccccc2C1=O
2-[N-(furan-2-ylmethyl)-C-methylcarbonimidoyl]-3-hydroxyinden-1-one