Task: Answer the multiple choice question.
Query: Which compound exhibits a 17.399\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a O=C1CN(C(=O)c2cnccn2)c2ccccc2N1
b O=C(N/C(=C\c1ccco1)C(=O)N1CCOCC1)c1ccccc1Cl
c O=C(NN=C1CCCC1)C1COc2ccccc2O1
d COc1ccccc1Cn1nnc2c(=O)[nH]c(C3CCN(C(=O)c4ccc(F)cc4)CC3)nc21
Answer: a. O=C1CN(C(=O)c2cnccn2)c2ccccc2N1
{#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#}
O=C1CN(C(=O)c2cnccn2)c2ccccc2N1
O=C1CN(C(=O)c2cnccn2)c2ccccc2N1
4-(pyrazine-2-carbonyl)-1,3-dihydroquinoxalin-2-one