What are the two stages of photosynthesis represented by b and c in the diagram shown?

If I had to guess, I would say both are light reactions.

B is representing photosystem 1, while C is representing photosystem 2

I could probably give a more confident answer if there were some labels or a key to describe the symbols given in the diagram. Hope this helps!

B represents ATP+NADPH Calvin Cycle, C represents ADP+Pi+NADP+ Light Dependent Reactions. Hope this is the answer you are looking for.

Animal cells don't have cell walls