Task: Answer the multiple choice question.
Question: Which drug exhibits a 12.944\% 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) COc1ccc(/C=N/NC(=O)c2ccc(NC(=O)c3ccccc3Br)cc2)cc1
b) COCc1[nH]c(=S)c(C#N)cc1C(=O)OC
Answer: b. COCc1[nH]c(=S)c(C#N)cc1C(=O)OC
{#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#}
COCc1[nH]c(=S)c(C#N)cc1C(=O)OC
COCc1[nH]c(=S)c(C#N)cc1C(=O)OC
methyl 5-cyano-2-(methoxymethyl)-6-sulfanylidene-1H-pyridine-3-carboxylate