22- Given the following pseudocode, what value of GRADE will be output if 50 is input? Start Read GRADENUM CASENTRY GRADENUM CASE GRADENUM <= 100 GRADE = A CASE GRADENUM < 90 GRADE = B CASE GRADENUM < 79 GRADE = C CASE GRADENUM < 69 GRADE = D" CASE GRADENUM < 59 GRADE = F" ENDCASE Write GRADE Stop

the chooses are:

1- A

2-

B

3-

C

4-

No Grade