In the figure the variation of compenents of acceleration of a particle of mass is `1 kg` is shown w.r.t. time. The initial velocity of the particle is `vec u=(- 3i + 4j) m//s`. The totak work done by the resultant force on the particle in time from `t = 0` to `t = 4` seconds is :

.
A. 15 J
B. 10 J
C. 0
D. 20 J