`vec(A)= 2hat(i)+hat(j), B= 3hat(j)-hat(k) and vec(C )= 6hat(i)-2hat(k)`
Value of `vec(A)-2vec(B)+3vec(C )` would be

Options

A. `20hat(i)+5hat(j)+4hat(k)`
B. `20hat(i)-5hat(j)-4hat(k)`
C. `4hat(i)+5hat(j)+20hat(k)`
D. `5hat(i)+4hat(j)+10hat(k)`

Answer

B