Task: Answer the MCQ question.
Question: Which compound exhibits a 7.926\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a) O=c1cc(NCCCO)c2ccccc2o1
b) CC1CC(=O)Nc2ccccc2N1S(=O)(=O)c1ccc(C(F)(F)F)cc1
c) Cc1cc(CN2CCCC(CO)(Cc3cccc(Cl)c3)C2)n[nH]1
Answer: a. O=c1cc(NCCCO)c2ccccc2o1
{#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=c1cc(NCCCO)c2ccccc2o1
O=c1cc(NCCCO)c2ccccc2o1
4-(3-hydroxypropylamino)chromen-2-one