Task: Answer the multiple choice question.
Question: Which drug exhibits a -4.439% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a CCOC(=O)C1C(=O)NC(C)C1c1ccccc1
b CC(=O)NC(=O)NC1CSCC1OC(C)=O
c COc1ccccc1N1CCN(C(=O)Cn2nnc(-c3ccncc3)n2)CC1
d O=C1C2C3C=CC(CC3)C2C(=O)N1c1ccccc1F
Answer: a. CCOC(=O)C1C(=O)NC(C)C1c1ccccc1
{#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#}
CCOC(=O)C1C(=O)NC(C)C1c1ccccc1
CCOC(=O)C1C(=O)NC(C)C1c1ccccc1
ethyl 5-methyl-2-oxo-4-phenylpyrrolidine-3-carboxylate