Task: Answer the multiple choice question.
Query: Which drug has a 4.390\% 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 Cn1c(=O)c2c(nc(Sc3ncccn3)n2Cc2ccccc2Cl)n(C)c1=O
b CC1CC1C(=O)OCC(=O)NCc1ccccc1Cl
Answer: b. CC1CC1C(=O)OCC(=O)NCc1ccccc1Cl
{#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#}
[2-[(2-chlorophenyl)methylamino]-2-oxoethyl] 2-methylcyclopropane-1-carboxylate