PQRA is a rectangle, AP = 22 cm, PQ = 8 cm. $$\triangle$$ABC is a triangle whose vertices lie on the sides of PQRA such that BQ = 2 cm and QC = 16 cm .Then the length of the line joining the mid points of the sides AB and BC is

A

$$4\surd2$$ cm

B

5 cm

C

6 cm

D

10 cm