Problem statement: Answer the multiple choice question.
Question: Which drug exhibits a 12.497\% 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 other words.
Options:
a: O=C1Nc2ccc(Br)cc2C12OCCO2
b: O=C(O)c1ccccc1-n1c2ccccc2c2ccccc21
Answer: a. O=C1Nc2ccc(Br)cc2C12OCCO2
{#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=C1Nc2ccc(Br)cc2C12OCCO2
O=C1Nc2ccc(Br)cc2C12OCCO2
5'-bromospiro[1,3-dioxolane-2,3'-1H-indole]-2'-one