In Agatha Christie's mystery novels, who is the Belgian detective known for his meticulous and methodical approach to solving crimes?
A. Miss Marple
B. Hercule Poirot
C. Tommy and Tuppence
D. Superintendent Battle
Hercule Poirot is the Belgian detective in Agatha Christie's novels known for his meticulous and methodical approach to solving crimes, often using his "little grey cells."