Problem statement: Answer the MCQ question.
Question: Which compound has a 17.855\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a. CCCCN(S(=O)(=O)c1ccccc1)S(=O)(=O)c1ccccc1
b. CCCC(=O)Nc1ccc2c(c1)nc(CN1CCCC1)n2C
Answer: b. CCCC(=O)Nc1ccc2c(c1)nc(CN1CCCC1)n2C
{#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#}
CCCC(=O)Nc1ccc2c(c1)nc(CN1CCCC1)n2C
CCCC(=O)Nc1ccc2c(c1)nc(CN1CCCC1)n2C
N-[1-methyl-2-(pyrrolidin-1-ylmethyl)benzimidazol-5-yl]butanamide