Task: Answer the multiple choice question.
Question: Which drug exhibits a 13.519\% 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(O)CCN1c2ccccc2Sc2ccccc21
b: COC(=O)c1cn(NC(=O)c2cc(OC)c(OC)c(OC)c2)c(=O)c2ccccc12
Answer: a. O=C(O)CCN1c2ccccc2Sc2ccccc21
{#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(O)CCN1c2ccccc2Sc2ccccc21
O=C(O)CCN1c2ccccc2Sc2ccccc21
3-phenothiazin-10-ylpropanoic acid