Which code segment should you insert at line 20?
Which code segment should you insert at line 04?
Which two actions should you perform?
Which code segment should you insert at line 07?
Which two code segments can you use to achieve this goal?
Which code segment should you use?
Which access modifier should you use for the GetData() …
You need to add a book to the BookTracker instance
You need to implement the UpdateGrade() method