A particle gets displaced by $$\Delta \vec{r} = (2\hat{i} + 3\hat{j} + 4\hat{k})\ \text{m}$$ under the action of a force $$\vec{F} = (7\hat{i} + 4\hat{j} + 3\hat{k})$$. The change in its kinetic energy is

A

38 J

B

70 J

C

52.5 J

D

126 J