Task: Answer the MCQ question.
Question: Which drug exhibits a 0.869\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any other words.
Options:
[a] CN1CCN(c2ccc([N+](=O)[O-])c3no[n+]([O-])c23)CC1
[b] O=C(Cn1c(C(=O)N2CCN(C3CCCC3)CC2)cc2sccc21)c1ccccc1
[c] COc1ccc(NCc2ccc3c(c2)OCO3)cc1Cl
[d] CN(CC(=O)Nc1c(Cl)cccc1Cl)C(=O)CCc1nc2sc3c(c2c(=O)[nH]1)CCCC3
[e] CCCCc1c(O)nc(SCC(=O)N2CCOCC2)n(-c2ccccc2C)c1=O
Answer: a. CN1CCN(c2ccc([N+](=O)[O-])c3no[n+]([O-])c23)CC1
{#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#}
CN1CCN(c2ccc([N+](=O)[O-])c3no[n+]([O-])c23)CC1
CN1CCN(c2ccc([N+](=O)[O-])c3no[n+]([O-])c23)CC1
4-(4-methylpiperazin-1-yl)-7-nitro-3-oxido-2,1,3-benzoxadiazol-3-ium