Task: Answer the MCQ question.
Query: Which compound exhibits a 2.807% 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=c1c2ccccc2nc(/C=C/c2ccc(Br)cc2)n1CCO
(b) Cc1ccc(C2=NC(C)(C)N3C2C3c2ccc([N+](=O)[O-])cc2)cc1
Answer: a. O=c1c2ccccc2nc(/C=C/c2ccc(Br)cc2)n1CCO
{#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=c1c2ccccc2nc(/C=C/c2ccc(Br)cc2)n1CCO
O=c1c2ccccc2nc(/C=C/c2ccc(Br)cc2)n1CCO
2-[(E)-2-(4-bromophenyl)ethenyl]-3-(2-hydroxyethyl)quinazolin-4-one