Which three lengths could be the lengths of the sides of a triangle?
A.21 cm, 7 cm, 6 cm
B.10 cm, 15 cm, 24 cm
C.12 cm, 5 cm, 17 cm
D.9 cm, 22 cm, 11 cm
A.21 cm, 7 cm, 6 cm
B.10 cm, 15 cm, 24 cm
C.12 cm, 5 cm, 17 cm
D.9 cm, 22 cm, 11 cm