Task: Answer the multiple choice question.
Question: Which compound exhibits a 10.875\% 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: CCOCCCNC(=O)C(NC(=O)CNC(C)=O)c1ccc(Cl)cc1
b: CC1=CSC2=NC(=O)/C(=C\c3cccn3-c3ccc([N+](=O)[O-])cc3)C(=N)N12
Answer: b. CC1=CSC2=NC(=O)/C(=C\c3cccn3-c3ccc([N+](=O)[O-])cc3)C(=N)N12
{#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#}
CC1=CSC2=NC(=O)/C(=C\c3cccn3-c3ccc([N+](=O)[O-])cc3)C(=N)N12
CC1=CSC2=NC(=O)/C(=C\c3cccn3-c3ccc([N+](=O)[O-])cc3)C(=N)N12
(6Z)-5-imino-3-methyl-6-[[1-(4-nitrophenyl)pyrrol-2-yl]methylidene]-[1,3]thiazolo[3,2-a]pyrimidin-7-one