Problem statement: Answer the MCQ question.
Query: Which drug exhibits a 13.878\% 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) CCCCCn1c(CNC(=O)CCC)nc2ccccc21
(b) Cn1c(O)c(C=Nc2ccc(Cl)cc2)c(=O)n(C)c1=O
Answer: b. Cn1c(O)c(C=Nc2ccc(Cl)cc2)c(=O)n(C)c1=O
{#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#}
Cn1c(O)c(C=Nc2ccc(Cl)cc2)c(=O)n(C)c1=O
Cn1c(O)c(C=Nc2ccc(Cl)cc2)c(=O)n(C)c1=O
5-[(4-chlorophenyl)iminomethyl]-6-hydroxy-1,3-dimethylpyrimidine-2,4-dione