Cells of this tissue are living and show angular wall thickening. They also provide mechanical support. The tissue is

Xylem is conductive complex tissue, transports water and mineral and is usually dead in nature, so option (a) is not correct.

Sclerenchyma consists of long, narrow cells with thick and lignified cell walls but they are usually dead. So option (b) is incorrect.

Collenchyma consists of cells which are thickened at the corners due to deposition of cellulose, hemicellulose and pectin. They provide mechanical support to the growing parts of the plant.

Epidermis is the outermost layer of the primary plant body. They are usually single layered.

Hence the correct answer is option (c).