Task: Answer the MCQ question.
Query: Which compound exhibits a -1.063\% human ether-à-go-go related gene (hERG) inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a O=C(NC(NNc1ccc([N+](=O)[O-])cc1)(C(F)(F)F)C(F)(F)F)c1ccc(F)cc1
b [O-][n+]1cccc2c(Br)cc(Br)c(O)c21
Answer: b. [O-][n+]1cccc2c(Br)cc(Br)c(O)c21
{#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#}
[O-][n+]1cccc2c(Br)cc(Br)c(O)c21
[O-][n+]1cccc2c(Br)cc(Br)c(O)c21
5,7-dibromo-1-oxidoquinolin-1-ium-8-ol