Hello!
Using the given options as a guide, you may find that it helps to draw on the diagram itself. In the attached image, let the following apply:
B1/B2 = bread 1 / bread 2
M1/M2 = meat 1 / meat 2
C1/C2 = cheese 1 / cheese 2
Based on the attached image, we can confirm that the diagram represents 2 breads, 2 meats, and 2 cheeses.
Therefore, the correct answer is A.
I hope this helps!