Task: Answer the MCQ question.
Question: Which compound exhibits a 19.763\% 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 other words.
Options:
a: COc1ccccc1OCC(=O)NN=C(Cc1ccccc1)Cc1ccccc1
b: CCOC(=O)C1=C(c2ccccc2)NC(SCC(=O)Nc2ccc(C)cc2)=C(C#N)C1c1ccco1
c: COC(=O)N/N=C(\C)c1ccc(Br)cc1
d: COC(=O)CCC(=O)NNC(=O)c1ccc([N+](=O)[O-])cc1
Answer: d. COC(=O)CCC(=O)NNC(=O)c1ccc([N+](=O)[O-])cc1
{#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#}
COC(=O)CCC(=O)NNC(=O)c1ccc([N+](=O)[O-])cc1
COC(=O)CCC(=O)NNC(=O)c1ccc([N+](=O)[O-])cc1
methyl 4-[2-(4-nitrobenzoyl)hydrazinyl]-4-oxobutanoate