Recall the Application About the Size of Wal-Mart to Answer

Recall the Application about the size of Wal-Mart to answer the following question(s) . During 2008, Wal-Mart's sales were approximately $374 billion, or roughly 2.6 percent of U.S. GDP, and its cost of sales was $286 billion.
-According to this Application, what was the approximate value of Wal-Mart's value added in 2008?

A) $88 billion
B) $286 billion
C) $374 billion
D) $661 billion