The correct option is A Collenchyma
The collenchyma is the permanent tissue found in dicot plants which provide mechanical support to the plant. It consists of cells which are much thickened at the corners due to a deposition of cellulose, hemicellulose, and pectin.
The walls of parenchyma are thin and only made up of cellulose whereas the walls of sclerenchyma are thickened and composed of cellulose.
So, the correct answer is option A.