Radha moves towards South-East a distance of 7 km, then she moves towards West and travels a distance of 14 km. From here, she moves towards North-West a distance of 7 km and finally she moves a distance of 4 km towards east. How far is she now from the starting point?

A.

3 km

B.

4 km

C.

10 km

D.

11 km

Correct answer is C

No explanation has been provided for this answer.