A typical grocery store in the United States may sell oranges grown primarily in California during part of the year and oranges grown primarily in South Africa during a different part of the year. Which of the following explains why oranges are available year-round in the United States?
A. Grocery stores sell oranges that are grown in locations with similar climates but different growing seasons.
B. Grocery stores sell oranges that are grown in locations with similar growing seasons but different climates.
C. Customers have seasonal demands for different varieties of oranges.
D. Different varieties of oranges are grown for different markets.