Problem statement: Answer the multiple-choice question.
Question: Which drug exhibits a 15.562\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a: C=CCOc1ccc(CNc2nccs2)cc1
b: COc1ccc(Cl)cc1NC(=O)COC(=O)C(CC(C)C)N1C(=O)C2CC=CCC2C1=O
c: COc1ccc2oc3ccccc3c(=O)c2c1
d: O=C(Nc1ncnc2sc3c(c12)CCCCC3)c1ccccc1
Answer: c. COc1ccc2oc3ccccc3c(=O)c2c1
{#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#}
COc1ccc2oc3ccccc3c(=O)c2c1
COc1ccc2oc3ccccc3c(=O)c2c1
2-methoxyxanthen-9-one