Task: Answer the multiple-choice question.
Query: Which compound has a 2.537\% 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) CC(=O)Nc1ccc(C(=O)OCC(=O)Nc2ccc([N+](=O)[O-])cc2C(F)(F)F)cc1
(b) CCOC(=O)N1CCN(C(=O)CN(C)S(=O)(=O)c2ccc3c(c2)C(C)(C)C(=O)N3C)CC1
(c) CCCCN=C1NN=C(c2ccc3c(c2)OCCO3)CS1
(d) CCOC(=O)C1=NN(c2ccc([N+](=O)[O-])cc2)CC1C(=O)OC
Answer: d. CCOC(=O)C1=NN(c2ccc([N+](=O)[O-])cc2)CC1C(=O)OC
{#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)C1=NN(c2ccc([N+](=O)[O-])cc2)CC1C(=O)OC
CCOC(=O)C1=NN(c2ccc([N+](=O)[O-])cc2)CC1C(=O)OC
5-O-ethyl 4-O-methyl 2-(4-nitrophenyl)-3,4-dihydropyrazole-4,5-dicarboxylate