Can someone help me with this java question please

We have the following code:

What are the declarations of the methods that must have the annotation @Override.

Choose at least one answer

public class Enonce { public E phrase( E e) { return null; } public String toString() { return "allo"; } } public interface Formule { default F texte Fe) { return null; } F texte(); } public class Expression extends Enonce implements Formule { a) public F phrase(F e, Ff) { return null; } b) public F phrase(F e) { return null; } c) public String toString( String s ) { return "allo"; } d) public F texte() { return null; } e) public F texte (F e) { return null; } f) public F texte (Fe, Ff) { return null; } 8) public boolean equals( object obj) { return false; } }