Task: Answer the multiple choice question.
Query: Which drug exhibits a -21.266% 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 additional words.
Options:
a) CCOC(=O)C1CCN(C(=O)Nc2ccc3nc(-c4ccco4)c(-c4ccco4)nc3c2)CC1
b) CC(=O)Nc1ccc(-c2cc(NC(C)=O)n(-c3ccccc3)n2)cc1
c) CC1(C)CC(=O)C2=C(C1)OC(N)=C(C#N)C2c1ccccc1OC(=O)N1CCOCC1
d) Clc1ccc(CSc2nnc(-c3ccc4c(c3)OCO4)o2)cc1
Answer: a. CCOC(=O)C1CCN(C(=O)Nc2ccc3nc(-c4ccco4)c(-c4ccco4)nc3c2)CC1
{#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)C1CCN(C(=O)Nc2ccc3nc(-c4ccco4)c(-c4ccco4)nc3c2)CC1
CCOC(=O)C1CCN(C(=O)Nc2ccc3nc(-c4ccco4)c(-c4ccco4)nc3c2)CC1
ethyl 1-[[2,3-bis(furan-2-yl)quinoxalin-6-yl]carbamoyl]piperidine-4-carboxylate