Riya moves a distance of 7 km towards South-East, 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
can you pl share solution with diagram for this