What is the main difference between AI$,$ ML$,$ and DL$?$

Question $3$ options:

ML focuses on writing algorithms to identify patterns in data, while DL focuses on training models using deep networks.

AI refers to the simulation of human intelligence in machines, while ML and DL refer to specific approaches to achieving AI$.$

AI refers to the study of intelligent agents, while ML and DL are sub$-$fields of AI that focus on building systems that can learn from data.

ML focuses on decision trees and rule$-$based systems, while DL focuses on neural networks.