Task: Answer the multiple choice question.
Query: Which drug has a 15.246\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a. CCOC(=O)C(=CNc1ccc2c(c1)c1ccccc1n2CC)C(=O)OCC
b. Cc1ccc(-n2nnnc2SCC(=O)c2nnc(-c3ccc(Cl)cc3)o2)cc1
c. O=c1[nH]c(=S)n(-c2ccc(Br)cc2)c(O)c1C=Nc1ccc(N2CCOCC2)cc1
Answer: a. CCOC(=O)C(=CNc1ccc2c(c1)c1ccccc1n2CC)C(=O)OCC
{#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#}
CCOC(=O)C(=CNc1ccc2c(c1)c1ccccc1n2CC)C(=O)OCC
CCOC(=O)C(=CNc1ccc2c(c1)c1ccccc1n2CC)C(=O)OCC
diethyl 2-[[(9-ethylcarbazol-3-yl)amino]methylidene]propanedioate