Task: Answer the MCQ question.
Query: Which compound exhibits a 0.731\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a) COc1cccc2sc(NN)nc12
b) COc1ccc(C(=O)NC(=S)Nc2ccccc2N2CCCCC2)cc1[N+](=O)[O-]
c) Cc1c(C(=O)NCc2ccco2)oc2ccc(S(=O)(=O)N3CCC4(CC3)OCCO4)cc12
Answer: a. COc1cccc2sc(NN)nc12
{#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#}
COc1cccc2sc(NN)nc12
COc1cccc2sc(NN)nc12
(4-methoxy-1,3-benzothiazol-2-yl)hydrazine