Which of the following is not true? If `vec A=3hati+4hatj` and `vecB = 6hati+8hatj` where `A` and `B` are the magnitudes of `vecA` and `vecB`?

Options

A. `vecAxxvecB=0`
B. `A/B =1/2`
C. `vecA.vecB =48`
D. `A=5`