Task: Answer the multiple choice question.
Question: Which drug exhibits a 9.879\% 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] Cn1nnnc1SCC(=O)NCCc1ccc(Cl)cc1
[b] O=C(Cc1ccc(Br)cc1)NCCc1ccccc1
[c] Cn1c(=O)cc(C(=O)N/N=C/c2ccc(F)cc2)[nH]c1=O
[d] O=C(O)CC(c1cccc([N+](=O)[O-])c1)N1Cc2ccccc2C1=O
Answer: d. O=C(O)CC(c1cccc([N+](=O)[O-])c1)N1Cc2ccccc2C1=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(O)CC(c1cccc([N+](=O)[O-])c1)N1Cc2ccccc2C1=O
O=C(O)CC(c1cccc([N+](=O)[O-])c1)N1Cc2ccccc2C1=O
[3-[3-hydroxy-3-oxo-1-(3-oxo-1H-isoindol-2-yl)propyl]phenyl]-oxido-oxoazanium