Task: Answer the multiple-choice question.
Question: Which compound exhibits a -43.315% human ether-à-go-go related gene (hERG) inhibition at 10uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
[a] O=C(NCCNc1ccc([N+](=O)[O-])cc1)c1ccccc1Br
[b] c1cnc2ccc(C(c3nnnn3C3CCCCC3)N3CCN(C4CCCCC4)CC3)cc2c1
Answer: a. O=C(NCCNc1ccc([N+](=O)[O-])cc1)c1ccccc1Br
{#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(NCCNc1ccc([N+](=O)[O-])cc1)c1ccccc1Br
O=C(NCCNc1ccc([N+](=O)[O-])cc1)c1ccccc1Br
2-bromo-N-[2-(4-nitroanilino)ethyl]benzamide