Task: Answer the MCQ question.
Query: Which drug exhibits a 1.094\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: CCNS(=O)(=O)c1ccc(C)c(-n2cnnn2)c1C
b: Cc1nc(SCC(=O)Nc2ccc3c(c2)OCO3)c(C#N)c2c1CCCC2
Answer: a. CCNS(=O)(=O)c1ccc(C)c(-n2cnnn2)c1C
{#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#}
CCNS(=O)(=O)c1ccc(C)c(-n2cnnn2)c1C
CCNS(=O)(=O)c1ccc(C)c(-n2cnnn2)c1C
N-ethyl-2,4-dimethyl-3-(tetrazol-1-yl)benzenesulfonamide