$A$ vector $P$ has $X$ and $Y$ components of magnitude $2$ units and $4$ units respectively. $A$ vector $Q$ along the negative $X$-axis has a magnitude of $6$ units. The vector $(Q - P)$ will be
- A$4(2 \hat{i}-\hat{j})$
- B$-4(2 \hat{i}-\hat{j})$
- C$4(2 \hat{i}+\hat{j})$
- D$-4(2 \hat{i}+\hat{j})$
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