Which four statements are true? (Choose four.)

Which four statements are true? (Choose four.)

A.
Has-a relationships should never be encapsulated.

B.
Has-a relationships should be implemented using inheritance.

C.
Has-a relationships can be implemented using instance variables.

D.
Is-a relationships can be implemented using the extends keyword.

E.
Is-a relationships can be implemented using the implements keyword.

F.
The relationship between Movie and Actress is an example of an is-a relationship.

G.
An array or a collection can be used to implement a one-to-many has-a relationship.

Explanation: