Task: Answer the MCQ question.
Question: What is the hERG inhibition at 1uM of a compound with the SMILES O=C(COc1cccc(NC(=O)c2cccc([N+](=O)[O-])c2)c1)c1ccc(Br)cc1?
Constraint: You must return none, one or more options from a or b without using any other words.
Options:
[a] -0.734
[b] 3.631
Answer: b. 3.631\%.
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: What is the {herg_central_at_1uM__names__noun} of a {#compound|drug!} with the {SMILES__description} {SMILES#}?
Constraint: You must return none, one or more options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{herg_central_at_1uM%SMILES%}
Answer: {%multiple_choice_result}. {herg_central_at_1uM#}{herg_central_at_1uM__units}.
O=C(COc1cccc(NC(=O)c2cccc([N+](=O)[O-])c2)c1)c1ccc(Br)cc1
O=C(COc1cccc(NC(=O)c2cccc([N+](=O)[O-])c2)c1)c1ccc(Br)cc1
[3-[[3-[2-(4-bromophenyl)-2-oxoethoxy]phenyl]carbamoyl]phenyl]-oxido-oxoazanium