McDonald's Recognized a Trend Toward Fast Casual Restaurants That Offered

McDonald's recognized a trend toward fast casual restaurants that offered more customized food that is prepared quickly, so it acquired Chipotle. Which reason to develop new products is most evident?

A) to stay ahead of or match the competition
B) to continue to expand revenues and profits
C) to fill out a product line
D) to take advantage of opportunity
E) to make investors happy