How long should the sprint review take? Choose the best answer

How long should the sprint review take? Choose the best answer
A . Until everyone is done.
B. Max two hours for a one month sprint
C. Max two hours
D. Max four hours
E. Max four hours for a one-month sprint

Answer: E

Explanation:

The scrum guide says: "The Sprint Review is the second to last event of the Sprint and is timeboxed to a maximum of four hours for a one-month Sprint."