Answer:
Muhammad Ali was one of the greatest boxers in history, the first fighter to win the world heavyweight championship on three separate occasions. In addition, he was known for his social message of black pride and black resistance to white domination and for refusing induction into the U.S. Army during the Vietnam War.
A comparison between two otherwise unlike objects, people, places or things
Imaginary. He is describing the man's hands. Most likely, the man was an agricultural worker or labourer. People who worked for hours develop hard hands and calluses. Rich people had very soft, baby hands because they never had to lift a finger for anything.
"<u>That</u>" is the demonstrative adjective.