Question $5$: Game of Knights, Knaves and Spies: Knights always tell truth. Knaves always lie,

Spy can lie or tell truth. There are three people $($Alex$,$ Brook and Cody$),$ one of whom is a

knight, one a knave, and one a spy$.$ Alex says: "Cody is a knave." Brook says: "Alex is a knight."

Cody says: "I am the spy$."$

Who is the knight, who the knave, and who the spy$?$ Hint: Use truth table. You must show your

work to get all points! Explain your answer.