What is the value of GPA when grade is 'B' in the following code segment? 1,2,3,4, or None of the above

int GPA=0; switch (grade) { case 'A': case 'a': GPA = GPA + 1; case 'B': case 'b': GPA = GPA + 1; case 'C': case 'c': GPA = GPA + 1; case 'D': case 'd': GPA = GPA + 1; }

and

What is the value of GPA when grade is 'B' in the following code segment? 1,2,3,4, or None of the above

int GPA=0; switch (grade) { case 'D': case 'd': GPA = GPA + 1; case 'C': case 'c': GPA = GPA + 1; case 'B': case 'b': GPA = GPA + 1; case 'A': case 'a': GPA = GPA + 1; }