Task: Answer the MCQ question.
Question: Which compound exhibits a 16.911\% 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(=NC(C)CC)NNc1ccc(Br)cc1
b) Cc1ccc2c(C(=O)CN3CCC4(CC3)OCCO4)c(C)[nH]c2c1
c) Cc1nc2ccc(NC(=O)c3ccc(Cl)c(NC(=O)c4cccs4)c3)cc2s1
Answer: a. CCOC(=O)C(=NC(C)CC)NNc1ccc(Br)cc1
{#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(=NC(C)CC)NNc1ccc(Br)cc1
CCOC(=O)C(=NC(C)CC)NNc1ccc(Br)cc1
[C][C][O][C][=Branch1][C][=O][C][=Branch1][Branch2][=N][C][Branch1][C][C][C][C][N][N][C][=C][C][=C][Branch1][C][Br][C][=C][Ring1][#Branch1]
ethyl 2-[2-(4-bromophenyl)hydrazinyl]-2-butan-2-yliminoacetate