You want to use a symbol table of type SequentialSearchST . What methods must be defined in the classes Name and/or PhoneNumber in order for the symbol table to work correctly? Question 2 options: PhoneNumber must implement the method public boolean equals(Object other) Name must implement the method public boolean equals(Name other) and PhoneNumber must implement the method public boolean equals(PhoneNumber other) Name must implement the method public boolean equals(Object other) Name must implement the method public boolean equals(Object other) and PhoneNumber must implement the method public boolean equals(Object other)