If $\hat{i}, \hat{j}, \hat{k}$ are unit vectors along X, Y, Z axes then,

A. $\hat{i} \times \hat{i}=1$
B. $\hat{j} . \hat{j}=0$
C. $\hat{i} \times \hat{j}=\hat{k}$
D. $\hat{k} \times \hat{i}=\hat{j}$
E. $\hat{i} . \hat{j}=0$

Choose the correct answer from the options given below:

C, D and E only

The correct answer is Option (4) → C, D and E only

A. false, $\hat i×\hat i=\hat 0$

B. false, $\hat j.\hat j=1$

C. True

D. True

E. True