Problem statement: Answer the MCQ question.
Question: Which compound exhibits a 18.691\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
[a] Cc1occc1C(=O)NNC(=O)Nc1ccc(F)cc1F
[b] CC(C)(NC(=O)c1ccccc1)c1nc2ccccc2s1
Answer: a. Cc1occc1C(=O)NNC(=O)Nc1ccc(F)cc1F
{#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#}
Cc1occc1C(=O)NNC(=O)Nc1ccc(F)cc1F
Cc1occc1C(=O)NNC(=O)Nc1ccc(F)cc1F
1-(2,4-difluorophenyl)-3-[(2-methylfuran-3-carbonyl)amino]urea