Vector $\overrightarrow{A}\text{and}-\overrightarrow{A}$ have

Vector $\overrightarrow{A}\text{and}-\overrightarrow{A}$ have equal magnitude but opposite direction A, C, D are not correct

Ex: $\overrightarrow{A}=2\hat{i}+2\hat{j}+2\hat{k}$  in this vector$\hat{i},\hat{j},\hat{k}$ are unit vectors along+ ve x, y, z axis$-\overrightarrow{A}=-2\hat{i}-2\hat{j}-2\hat{k}$ . Hence $-\hat{i},-\hat{j},-\hat{k}$  are unit vectors along  – ve x, y, z axis. So $\overrightarrow{A}\text{and}-\overrightarrow{A}$ are equal in magnitude and its direction is opposite.