The velocity field in a flow system is given by $v=2\textbf{i}+(x+y) \textbf{j} + (xyz) \textbf{k}$. The acceleration of the fluid at $(1,1,2)$ is

1. $2 \textbf{i}+ 10 \textbf{k}$
2. $4 \textbf{i}+ 12 \textbf{k}$
3. $\textbf{j}+ \textbf{k}$
4. $4 \textbf{j}+ 10 \textbf{k}$

Answer: