Task: Answer the MCQ question.
Question: Which compound has a 16.681\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) CCCCOC(=O)Nc1ccccc1C(=O)N1CCOCC1
(b) CCN(Cc1cc2cc(C)ccc2[nH]c1=O)C(=O)c1cccc([N+](=O)[O-])c1
Answer: a. CCCCOC(=O)Nc1ccccc1C(=O)N1CCOCC1
{#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#}
CCCCOC(=O)Nc1ccccc1C(=O)N1CCOCC1
CCCCOC(=O)Nc1ccccc1C(=O)N1CCOCC1
butyl N-[2-(morpholine-4-carbonyl)phenyl]carbamate