Aperson starts from Point A, walks 30m towards south and reaches Point B. He then takes a right turn and walks 7m, he takes a right turn, and walks for 6m. He then takes a right turn and walks 7m. He takes a final left turn, walks a certain distance and reaches Point R. Point R is 17m to the north of Point B. What is the distance between Point A and Point R?

Options

A. 23m
B. 21m
C. 27m
D. 13m

Answer

D