Task: Answer the MCQ question.
Question: Which drug exhibits a 0.993\% 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)CNC(=O)CSc1nnnn1-c1ccc(C)c(C)c1
b: COc1cc(NS(=O)(=O)c2ccc(NC(=S)NC(=O)c3ccc(F)cc3)cc2)nc(OC)n1
c: CCOP(=O)(C#CC(C)(C)C)C(O)(c1ccccc1)C(F)(F)F
Answer: a. CCOC(=O)CNC(=O)CSc1nnnn1-c1ccc(C)c(C)c1
{#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)CNC(=O)CSc1nnnn1-c1ccc(C)c(C)c1
CCOC(=O)CNC(=O)CSc1nnnn1-c1ccc(C)c(C)c1
ethyl 2-[[2-[1-(3,4-dimethylphenyl)tetrazol-5-yl]sulfanylacetyl]amino]acetate