Task: Answer the MCQ question.
Query: Which drug has a 6.318\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: COC(=O)c1cccc([N+](=O)[O-])c1CN1CCN(c2ccccc2)CC1
b: CCN1C(=O)C(CC(=O)NC2CCCCC2)N(CC)C1=O
Answer: b. CCN1C(=O)C(CC(=O)NC2CCCCC2)N(CC)C1=O
{#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#}
CCN1C(=O)C(CC(=O)NC2CCCCC2)N(CC)C1=O
CCN1C(=O)C(CC(=O)NC2CCCCC2)N(CC)C1=O
N-cyclohexyl-2-(1,3-diethyl-2,5-dioxoimidazolidin-4-yl)acetamide