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Leaves are an important part of the plant body. Leaves are the site of photosynthesis. The chlorophyll pigments present in leaves are responsible for the green color of leaves. Photosynthesis is the process of food synthesis in plants.

The stem of the plant bears various parts of plant such as leaves, fruits, and flowers. Extended parts of the stem are called branches can be smaller branches or larger ones. Plant stems are characterized by the presence of nodes as well as internodes. Nodes are mainly the points of attachment for flowers, leaves, and aerial roots. Internode is mainly the space between two nodes.

Trichomes are the hairy structures on the surface of epidermis. The chemicals release from trichomes has a defense mechanism against animals.

Lenticels are the pore like structure on leaf epidermis helps in exchange of gases.

Internodes are the part of stem that generally forms the gap between two nodes.

Therefore, option ‘c’ is the correct answer.

Nodes are the sites of attachment for leaves with the stem.