Problem statement: Answer the multiple choice question.
Query: What is the hERG inhibition at a concentration of 1uM of a drug with the SMILES O=C(Cn1cnc2ccccc21)c1ccc(Br)cc1?
Constraint: You must return none, one or more options from a, b, or c without using any other words.
Options:
a 3.540
b 2.575
c -19.738
Answer: a. 3.540\%.
{#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(Cn1cnc2ccccc21)c1ccc(Br)cc1
O=C(Cn1cnc2ccccc21)c1ccc(Br)cc1
[O][=C][Branch1][#C][C][N][C][=N][C][=C][C][=C][C][=C][Ring1][=Branch1][Ring1][=Branch2][C][=C][C][=C][Branch1][C][Br][C][=C][Ring1][#Branch1]
2-(benzimidazol-1-yl)-1-(4-bromophenyl)ethanone