$A$ body of mass $4 \ kg$ experiences two forces $\overrightarrow{F}_1 = 5 \hat{i} + 8 \hat{j} + 7 \hat{k}$ and $\overrightarrow{F}_2 = 3 \hat{i} - 4 \hat{j} - 3 \hat{k}$. The acceleration acting on the body is :
- A$2 \hat{i} - \hat{j} - \hat{k}$
- B$4 \hat{i} + 2 \hat{j} + 2 \hat{k}$
- C$2 \hat{i} + \hat{j} + \hat{k}$
- D$2 \hat{i} + 3 \hat{j} + 3 \hat{k}$
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