Context: Trade happens when people agree to exchange goods and services. People give up something to get something else. Sometimes people barter, or directly exchange one good or service for another.
Duncan and Sam open their lunch boxes in the school cafeteria. Neither Duncan nor Sam got everything that they wanted. The table below shows which items they each wanted:

Look at the images of their lunches. Then answer the question below.
Duncan's lunch Sam's lunch
What can Duncan and Sam trade to each get what they want?
A. Duncan can trade his tomatoes for Sam's broccoli.
B. Duncan can trade his tomatoes for Sam's carrots.
C. Sam can trade his almonds for Duncan's tomatoes.
D. Sam can trade his broccoli for Duncan's oranges.
Pick the correct answer from the listed options and provide the letter of the selected option.
Answer: A