Task: Answer the multiple choice question.
Question: Which compound exhibits a 10.676% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a. O=C(NNC(=O)c1ccccc1Br)c1ccc2nc[nH]c2c1
b. CCN(CC)S(=O)(=O)c1ccc(N2CCCC2)c(NC(=O)Cc2c(F)cccc2Cl)c1
Answer: a. O=C(NNC(=O)c1ccccc1Br)c1ccc2nc[nH]c2c1
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
O=C(NNC(=O)c1ccccc1Br)c1ccc2nc[nH]c2c1
O=C(NNC(=O)c1ccccc1Br)c1ccc2nc[nH]c2c1
N'-(2-bromobenzoyl)-3H-benzimidazole-5-carbohydrazide