The correct option is A Presence of uniform thickening
Parenchyma is found in the pith and cortex of stem and root, mesophyll of leaves, flesh of fruits, floral parts and in xylem and phloem. Cells have thin primary walls and polyhedral shapes. Cells are compactly arranged as in cortex and pith. Cells possess dense cytoplasm and have active metabolites.
Thus, the correct answer is option A.