I recently received a publications list and order form. I want to order seven items from the list. However, I noticed that the structure of the postage and packaging charges was very strange, as shown in the table below:
I have decided that I will ask them to pack my order in the number of parcels that will have the lowest postal charge.
What is the lowest postal charge for my seven items?
A. £1.90
B. £2.45
C. £3.30
D. £2.35
E. £2.25