Task: Answer the MCQ question.
Question: Which compound exhibits a 5.267\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a COc1ccc(C(CNC(=O)Cn2[nH]c(=O)c3ccccc3c2=O)N2CCCC2)cc1
b c1cncc(Nc2c3ccccc3nc3ccccc23)c1
c CC(NC(=O)C(Cc1ccccc1)NC(=O)c1ccccc1)C(=O)O
d CCOC(=O)Cn1cc(C#N)c(=O)[nH]c1=O
Answer: d. CCOC(=O)Cn1cc(C#N)c(=O)[nH]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#}
CCOC(=O)Cn1cc(C#N)c(=O)[nH]c1=O
CCOC(=O)Cn1cc(C#N)c(=O)[nH]c1=O
ethyl 2-(5-cyano-2,4-dioxopyrimidin-1-yl)acetate