Problem statement: Answer the multiple choice question.
Question: Which compound exhibits a 4.268\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) COC(=O)c1cccc(NC(=O)Nc2ccccc2OC)c1
(b) COc1ccc([N+](=O)[O-])cc1N(CC(=O)N(C)C)S(C)(=O)=O
Answer: a. COC(=O)c1cccc(NC(=O)Nc2ccccc2OC)c1
{#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#}
COC(=O)c1cccc(NC(=O)Nc2ccccc2OC)c1
COC(=O)c1cccc(NC(=O)Nc2ccccc2OC)c1
methyl 3-[(2-methoxyphenyl)carbamoylamino]benzoate