Task: Answer the multiple-choice question.
Query: Which compound exhibits a 9.895\% 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(Nc1ccon1)c1ccccc1F
b CCN=C1S/C(=C\c2cc(OCC)c(O)cc2Br)C(=O)N1CC
c O=c1c2ccccc2nc2ccc(N3CCOCC3)nn12
Answer: b. CCN=C1S/C(=C\c2cc(OCC)c(O)cc2Br)C(=O)N1CC
{#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#}
CCN=C1S/C(=C\c2cc(OCC)c(O)cc2Br)C(=O)N1CC
CCN=C1S/C(=C\c2cc(OCC)c(O)cc2Br)C(=O)N1CC
(5Z)-5-[(2-bromo-5-ethoxy-4-hydroxyphenyl)methylidene]-3-ethyl-2-ethylimino-1,3-thiazolidin-4-one