Which of the Following Statements Is True

Which of the following statements is true?

A) When you drive a car, pressing its gas pedal sends a message to the car to perform a task-that is, to go faster.
B) You send messages to an object; each message is implemented as a method call that tells a method of the object to perform its task.
C) A program might call a bank-account object's deposit method to increase the account's balance.
D) All of the above statements are true.