Task: Answer the multiple choice question.
Question: Which compound has a 15.019\% 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=C1NC(=S)S/C1=C\c1coc2ccccc2c1=O
b.) COc1cccc(-c2ccc(-c3noc(-c4ccccc4F)n3)c(OC)n2)c1
Answer: a. O=C1NC(=S)S/C1=C\c1coc2ccccc2c1=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#}
O=C1NC(=S)S/C1=C\c1coc2ccccc2c1=O
O=C1NC(=S)S/C1=C\c1coc2ccccc2c1=O
(5Z)-5-[(4-oxochromen-3-yl)methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one