A particle of mass `0.5 kg` is displaced from position `vec r_(1)(2,3,1)` to`vec r_(2)(4,3,2)` by applying a force of magnitude `30 N` which is acting along `(hati + hatj + hatk)`. The work done by the force is
A. `10sqrt(3)J`
B. `30sqrt(3)J`
C. 30 J
D. None of these