On a playing ground,Dinesh,Kunal,Nitin,Atul and Prashant are standing as described below facing the North.
$(i)$ Kunal is $40 \, m$ to the right of Atul.
$(ii)$ Dinesh is $60 \, m$ to the south of Kunal.
$(iii)$ Nitin is $25 \, m$ to the west of Atul.
$(iv)$ Prashant is $90 \, m$ to the north of Dinesh.
If a boy walks from Nitin,meets Atul followed by Kunal,Dinesh and then Prashant,how many metres has he walked if he has travelled the straight distance all through (in $, m$)?

• A
  $155$
• B
  $185$
• C
  $215$
• D
  $245$