Choose the correct option in terms of vehicle registration with its colour of letter and the background of number plate.
A. In case of transport vehicle
B. In case of temporary registrations
C. In case of taxies
D. In case of registration marks alloted to dealers
1. In black on a yellow background
2. In black on a white background
3. In white on a red background
4. In red on a yellow background
A B C D