Problem statement: Answer the multiple choice question.
Query: Which compound exhibits a -0.612\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a) CCOC(=O)c1cnc2c(cnn2C)c1NCCC#N
b) Cc1ccccc1-c1ncc(CN2CCC(CO)(CCCc3ccccc3)CC2)cn1
c) O=C(O)C(Cc1c[nH]c2ccccc12)NS(=O)(=O)c1ccc(Cl)cc1
d) Cn1c(=O)n(C)c2cc([N+](=O)[O-])c(N3CCN(C(=O)c4cccc(Cl)c4)CC3)cc21
Answer: a. CCOC(=O)c1cnc2c(cnn2C)c1NCCC#N
{#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)c1cnc2c(cnn2C)c1NCCC#N
CCOC(=O)c1cnc2c(cnn2C)c1NCCC#N
ethyl 4-(2-cyanoethylamino)-1-methylpyrazolo[3,4-b]pyridine-5-carboxylate