Answer:
It increased the depth of their product mix.
The depth of the product mix is basically how many different types of variations of the same product are offered, e.g. Coke, Diet Coke, Coke Zero, etc. Increasing product depth involves new flavors, different package sizes or other specific characteristics regarding the product.
Product width refers to the different types of products offered by the company, e.g. Toyota offers sedans, trucks, SUVs, minivans. In this case, product width is not affected.
