Consider the Following Code Snippet: Public Class Motorcycle Extends Vehicle

Consider the following code snippet: public class Motorcycle extends Vehicle
{
Private Tire[] tires;
Private Engine anEngine;
) . .
}
Which of the following statements describing relationships between the Motorcycle, Tire, Engine and Vehicle classes is NOT correct?

A) Motorcycle exhibits the has-a relationship with regards to Tire.
B) Motorcycle exhibits the is-a relationship with regard to Vehicle.
C) Vehicle exhibits the has-a relationship with regards to Motorcycle.
D) Motorcycle exhibits the knows-about relationship with regards to Engine.