Mazda's Miata convertible originally drew the most interest from women between the ages of 35-55. In order to interest more potential customers in the roadster, Mazda beefed up the model with heavier shocks and a faster engine, and then emphasized performance in its advertising. This is an example of creating a new product by ____________.
A. Product development strategy
B. Repositioning
C. Market diversification strategy
D. The development of a new product line