Problem statement: Answer the MCQ question.
Question: Which compound exhibits a 7.428\% human ether-à-go-go related gene (hERG) inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
[a] c1ccc2sc(SCSc3nc4ccccc4s3)nc2c1
[b] Cc1cc2nc[nH]c2cc1[N+](=O)[O-]
Answer: b. Cc1cc2nc[nH]c2cc1[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#}
Cc1cc2nc[nH]c2cc1[N+](=O)[O-]
Cc1cc2nc[nH]c2cc1[N+](=O)[O-]
5-methyl-6-nitro-1H-benzimidazole