Task: Answer the multiple-choice question.
Question: Which compound exhibits a 13.008\% 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: Cc1ccccc1NC(=O)NCCCN1CCCC1=O
b: O=S(=O)(NCc1ccc(C(F)(F)F)cc1)c1ccc(-n2cnnn2)cc1
Answer: a. Cc1ccccc1NC(=O)NCCCN1CCCC1=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#}
Cc1ccccc1NC(=O)NCCCN1CCCC1=O
Cc1ccccc1NC(=O)NCCCN1CCCC1=O
1-(2-methylphenyl)-3-[3-(2-oxopyrrolidin-1-yl)propyl]urea