Task: Answer the multiple-choice question.
Query: Which drug exhibits a 3.271\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a. Cc1cc(NS(=O)(=O)c2ccc(NC(=O)CSc3nnc(-c4ccco4)n3Cc3ccco3)cc2)nc(C)n1
b. CCOC(=O)C(=NC1CCS(=O)(=O)C1)NNc1cc(Cl)ccc1Cl
Answer: b. CCOC(=O)C(=NC1CCS(=O)(=O)C1)NNc1cc(Cl)ccc1Cl
{#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#}
CCOC(=O)C(=NC1CCS(=O)(=O)C1)NNc1cc(Cl)ccc1Cl
CCOC(=O)C(=NC1CCS(=O)(=O)C1)NNc1cc(Cl)ccc1Cl
ethyl 2-[2-(2,5-dichlorophenyl)hydrazinyl]-2-(1,1-dioxothiolan-3-yl)iminoacetate