Final answer:
The presence of a cuticle and stomata can be observed in location (c) on the leaf.
Step-by-step explanation:
The presence of a cuticle and stomata in a tree can be observed in the (c) location on the leaf. Stomata are tiny openings present on the surface of leaves, which are responsible for gas exchange and regulating the transpiration of water vapor. These stomata are surrounded by specialized cells called guard cells, which control their opening and closing.