Problem statement: Answer the MCQ question.
Query: Which compound exhibits a -19.952% hERG inhibition at 10uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a COC(=O)c1sc2ncccc2c1OCc1ccccc1Cl
b C/C(=N\Nc1cccc2cccnc12)c1ccccc1O
Answer: a. COC(=O)c1sc2ncccc2c1OCc1ccccc1Cl
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
COC(=O)c1sc2ncccc2c1OCc1ccccc1Cl
COC(=O)c1sc2ncccc2c1OCc1ccccc1Cl
methyl3-[(2-chlorophenyl)methoxy]thieno[2,3-b]pyridine-2-carboxylate