Sam's Fruit Cellar earns a $0.40 profit for each apple that it sells and a $0.40 profit for each banana that it sells. Which expression shows Sam's total profits from selling apples (a) and bananas (b)?

The expression that shows Sam's total profits from selling apples (a) and bananas (b) is:

Profit = 0.40a + 0.40b

A) 0.40(ab)

B) 0.40 (a + b)
C) 0.40 + a + 0.40 + b
D)0.80(ab)

B) 0.40 (a + b)