Task: Answer the MCQ question.
Question: Which drug has a 13.829\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a: CC(=O)NC(CC(=O)N1CCN(C(C)=O)CC1)c1ccccc1
b: CCCc1nnc(NC(=O)c2ccc(N3C(=O)C4C5C=CC(C5)C4C3=O)cc2)s1
c: COc1nc2ccccc2nc1OC
Answer: c. COc1nc2ccccc2nc1OC
{#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#}
COc1nc2ccccc2nc1OC
COc1nc2ccccc2nc1OC
2,3-dimethoxyquinoxaline