Problem statement: Answer the multiple choice question.
Query: Which compound exhibits a 2.102\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a: COC(=O)c1cc(C(=O)OCC(=O)c2ccc[nH]2)cc([N+](=O)[O-])c1
b: O=c1[nH]c2cc(Cl)c([N+](=O)[O-])nc2[nH]1
c: O=C(COC(=O)C1=NN(c2ccccc2)C(=O)CC1)Nc1ccc([N+](=O)[O-])cc1C(F)(F)F
Answer: b. O=c1[nH]c2cc(Cl)c([N+](=O)[O-])nc2[nH]1
{#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#}
O=c1[nH]c2cc(Cl)c([N+](=O)[O-])nc2[nH]1
O=c1[nH]c2cc(Cl)c([N+](=O)[O-])nc2[nH]1
6-chloro-5-nitro-1,3-dihydroimidazo[4,5-b]pyridin-2-one