Who is the detective in the mystery novels by Agatha Christie, known for his mustache and meticulous approach to solving crimes?
A. Hercule Poirot
B. Miss Marple
C. Tommy and Tuppence
D. Inspector Japp
Hercule Poirot is the detective in the mystery novels by Agatha Christie, known for his distinctive mustache and meticulous approach to solving crimes using his "little grey cells."