Task: Answer the multiple choice question.
Query: Which drug exhibits a 4.536\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any other words.
Options:
a.) O=[N+]([O-])c1cccc(C2(O)COc3ccccc3O2)c1
b.) CCn1nc(C(=O)Nc2cccc3ccccc23)c(Cl)c1Cl
c.) COC(=O)CSc1nc(N)c(NC(=O)c2ccc(OC)c(OC)c2)c(=O)[nH]1
d.) Cc1nn(CC(=O)O)c(C)c1NC(=O)c1cccs1
e.) CCCCn1c(=O)[nH]c(=O)c2c(C(=O)OCC)cc(-c3cccs3)nc21
Answer: e. CCCCn1c(=O)[nH]c(=O)c2c(C(=O)OCC)cc(-c3cccs3)nc21
{#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#}
CCCCn1c(=O)[nH]c(=O)c2c(C(=O)OCC)cc(-c3cccs3)nc21
CCCCn1c(=O)[nH]c(=O)c2c(C(=O)OCC)cc(-c3cccs3)nc21
ethyl 1-butyl-2,4-dioxo-7-thiophen-2-ylpyrido[2,3-d]pyrimidine-5-carboxylate