Answer :
I saw the image of this problem.
For the quadrilateral to be parallelogram, MP = PO
MP = y + 25
PO = 5y + 29
y + 25 = 5y + 29
y - 5y = 29 - 25
-4y = 4
y = 4/-4
y = -1
MO = MP + OP
MO = y + 25 + 5y + 29
MO = -1 + 25 + 5(-1) + 29
MO = -1 + 25 - 5 + 29
MO = -6 + 54
MO = 48 Choice B.
For the quadrilateral to be parallelogram, MP = PO
MP = y + 25
PO = 5y + 29
y + 25 = 5y + 29
y - 5y = 29 - 25
-4y = 4
y = 4/-4
y = -1
MO = MP + OP
MO = y + 25 + 5y + 29
MO = -1 + 25 + 5(-1) + 29
MO = -1 + 25 - 5 + 29
MO = -6 + 54
MO = 48 Choice B.