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Plants are autotrophs that are responsible for the production of food for every other organism. Therefore these are also known as producers. By the process of photosynthesis, they synthesize their food and also provide food to heterotrophs such as animals and other microbes.

A plant is composed of tissues that make up the important parts of the plant. There are mainly two main types of tissue that are ‘meristematic tissue’ and ‘permanent tissue’. Actively dividing cells are composed of meristematic tissue that is mainly found in the root and shoot tips. As the growth proceeds, meristematic tissue gradually differentiates into permanent tissue.

Dermal tissues contribute to the outer protective layers of the plant which is called the epidermis. It protects the underlying cells from environmental factors.

Vascular tissues are composed of xylem cells and phloem cells that are responsible for the material and water transportation in plants.

Permanent tissues are mainly the tissues incapable of further growth after a certain limit. Xylem and phloem are examples of complex permanent tissues.

Therefore, option ‘c’ is the correct answer because meristems are the specialized tissues that are responsible for the continuous growth of plant regions.