A Nurse moved 90 m in the East in a hospital to look for her duty Doctor, then she turned right and went 20 m. After this she turned right and after going 30 m she reached I.C.U. but the Doctor was not there. From there she went 100 m to her north and met her doctor. What distance did she moved to meet her duty doctor from the starting point.

A

100 m

B

120 m

C

80 m

D

140 m