Task: Answer the multiple-choice question.
Query: Which compound has a 2.748\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a: Cc1ccc(S(=O)(=O)N(C)CC(=O)N2CCCC2)cc1
b: COc1ccc(CNCc2c(O)c(Cl)cc3c(C)c(C)c(=O)oc23)c(OC)c1.Cl
c: O=C(N=Nc1c(O)[nH]c2ccc([N+](=O)[O-])cc12)c1ccccc1[N+](=O)[O-]
d: Cc1ccc(-c2nnn(CC(=O)N(CC(=O)NC3CCCCC3)c3ccc(F)c(Cl)c3)n2)o1
Answer: c. O=C(N=Nc1c(O)[nH]c2ccc([N+](=O)[O-])cc12)c1ccccc1[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#}
O=C(N=Nc1c(O)[nH]c2ccc([N+](=O)[O-])cc12)c1ccccc1[N+](=O)[O-]
O=C(N=Nc1c(O)[nH]c2ccc([N+](=O)[O-])cc12)c1ccccc1[N+](=O)[O-]
N-[(2-hydroxy-5-nitro-1H-indol-3-yl)imino]-2-nitrobenzamide