Match List I with List II

Choose the correct answer from the options given below:

A-IV, B-I, C-II, D-III

(A) area = $|2\hat i ×3\hat j|$ = 6 sq. units

(B) $(\hat i×\hat j)·\hat k+(\hat j×\hat k)·\hat i=\hat k.\hat k+\hat i.\hat i=1+1=2$

(C) $2\hat i-3\hat j+4\hat k$ and $a\hat i -6\hat j +8\hat k$ are collinear

$⇒\frac{2}{a}=\frac{4}{8}⇒9=4$

(D) $(2\hat i+\hat j+\hat k).(2\hat i-4\hat j+λ\hat k)=0$

$⇒4-4+λ=0⇒λ=0$