public class Team extends java.util.LinkedList { public void addPlayer（Player p） { add（p）； } public void compete（Team opponent） { /* more code here */ } } class Player { /* more code here */ } Which two are true？（）
- A This code will compile.
- B This code demonstrates proper design of an is-a relationship.
- C This code demonstrates proper design of a has-a relationship.
- D A Java programmer using the Team class could remove Player objects from a Team object.