Problem statement: Answer the multiple choice question.
Query: Which compound has a 18.820\% 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. CC(=O)Nc1ccccc1C(F)(F)F
b. CC(C)CCSc1nc2ccccc2[nH]1
c. Cc1ccccc1CN1C[C@@H]2C[C@@H](c3cn(C)nc3-c3ccccc3)N3CCC[C@@]23C1=O
Answer: a. CC(=O)Nc1ccccc1C(F)(F)F
{#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#}
CC(=O)Nc1ccccc1C(F)(F)F
CC(=O)Nc1ccccc1C(F)(F)F
N-[2-(trifluoromethyl)phenyl]acetamide