Task: Answer the MCQ question.
Query: Which drug exhibits a 14.084\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: Br.O=C(Cn1c(NCCO)nc2ccccc21)c1cccs1
b: CCC(=O)Nc1c(-c2ccccc2)c(=O)c2ccccc2n1C
Answer: a. Br.O=C(Cn1c(NCCO)nc2ccccc21)c1cccs1
{#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#}
Br.O=C(Cn1c(NCCO)nc2ccccc21)c1cccs1
Br.O=C(Cn1c(NCCO)nc2ccccc21)c1cccs1
2-[2-(2-hydroxyethylamino)benzimidazol-1-yl]-1-thiophen-2-ylethanone;hydrobromide