Task: Answer the multiple choice question.
Query: Which drug exhibits a 5.428\% 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: CCC(CO)(C(=O)OC1C[N+]2(C)CCC1CC2)c1ccccc1.[I-]
b: Cc1cc(C)nc(-n2ncc3c2CC(C)CC3=O)n1
c: O=C1CC(c2cc(-c3ccccc3)no2)C1
d: Cc1ccc2cn[nH]c2c1[N+](=O)[O-]
Answer: d. Cc1ccc2cn[nH]c2c1[N+](=O)[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#}
Cc1ccc2cn[nH]c2c1[N+](=O)[O-]
Cc1ccc2cn[nH]c2c1[N+](=O)[O-]
(6-methyl-1H-indazol-7-yl)-oxido-oxoazanium