Task: Answer the MCQ question.
Query: Which drug exhibits a -21.948% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
[a] COc1ccc(S(=O)(=O)Nc2ccc(S(=O)(=O)N(C)C)cc2)cc1[N+](=O)[O-]
[b] CCOC(=O)C1=C(COC(=O)C2CC(=O)N(c3ccc(CC)cc3)C2)NC(=O)NC1C
[c] CCCCNC(=O)c1cc2c(=O)n3cccc(C)c3nc2n(Cc2ccccc2)c1=N
Answer: b. CCOC(=O)C1=C(COC(=O)C2CC(=O)N(c3ccc(CC)cc3)C2)NC(=O)NC1C
{#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)C1=C(COC(=O)C2CC(=O)N(c3ccc(CC)cc3)C2)NC(=O)NC1C
CCOC(=O)C1=C(COC(=O)C2CC(=O)N(c3ccc(CC)cc3)C2)NC(=O)NC1C
ethyl 6-[[1-(4-ethylphenyl)-5-oxopyrrolidine-3-carbonyl]oxymethyl]-4-methyl-2-oxo-3,4-dihydro-1H-pyrimidine-5-carboxylate