Task: Answer the MCQ question.
Question: Which drug exhibits a 1.179\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
[a] COCC(C)n1c(C)cc(C(=O)COC(=O)c2oc3ccccc3c2C)c1C
[b] Cc1c(NC(N)=O)c(=O)n(-c2ccccc2)n1C
Answer: b. Cc1c(NC(N)=O)c(=O)n(-c2ccccc2)n1C
{#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#}
Cc1c(NC(N)=O)c(=O)n(-c2ccccc2)n1C
Cc1c(NC(N)=O)c(=O)n(-c2ccccc2)n1C
(1,5-dimethyl-3-oxo-2-phenylpyrazol-4-yl)urea