Problem statement: Answer the MCQ question.
Question: Which compound has a -1.463\% 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 CC(=O)c1c(O)c2cccc3c2n(c1=O)CCC3
b Cc1cc(N2CCOCC2)ncc1[N+](=O)[O-]
Answer: b. Cc1cc(N2CCOCC2)ncc1[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#}
Cc1cc(N2CCOCC2)ncc1[N+](=O)[O-]
Cc1cc(N2CCOCC2)ncc1[N+](=O)[O-]
4-(4-methyl-5-nitropyridin-2-yl)morpholine