Task: Answer the multiple-choice question.
Question: Which compound exhibits a 19.318\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a O=C(COC(=O)c1ccc(O)cc1)Nc1nccs1
b CCOC(=O)C1C(=O)OC2(CCCCC2)C1C(=O)OCC
c C=CCn1c(SCC(=O)c2[nH]c(C)c(C(=O)OCC)c2C)nc2scc(-c3ccc(OC)c(OC)c3)c2c1=O
Answer: a. O=C(COC(=O)c1ccc(O)cc1)Nc1nccs1
{#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(COC(=O)c1ccc(O)cc1)Nc1nccs1
O=C(COC(=O)c1ccc(O)cc1)Nc1nccs1
[2-oxo-2-(1,3-thiazol-2-ylamino)ethyl]4-hydroxybenzoate