Study the given information carefully and answer the given questions.
Point J is 13m to the west of Point K. Point K is 7m to the south of Point L. Point M is 4m to the east of Point L. Point N is 20 m to the south of Point M.
Sudha starts walking from Point B towards south. She walks for a distance of 9m, takes a right turn and walks for a distance of 8m to reach point N.
Point W is to the west of Point N and also to the south of Point K. What is the difference between WN and WK?

Options

A. 9m
B. 11m
C. 7m
D. 13m

Answer

A