Question

Which of the following are the possible side lengths of a triangle?
A.
m = 5 cm, n = 20 cm, p = 27 cm
B.
m = 5 cm, n = 20 cm, p = 23 cm
C.
m = 5 cm, n = 18 cm, p = 25 cm
D.
m = 3 cm, n = 20 cm, p = 25 cm