which one of the following has dead cells

Which one of the following has mast cells?

Which of the following tissues has dead cells ?

Which of the following tissues has dead cells with thick and lignified cells walls, having a few or numerous pits?

Which of the following tissues has dead cells with thick and lignified cell walls, having a few or numerous pits ?

Which of the following tissues has dead cells with thick and lignified cells walls, having a few or numerous pits?

Which of the following tissues has dead cells with thick and lignified cells walls, having a few or numerous pits?

Which of the following tissues has dead cells ? (a) Collenchyma (b) Sclerenchyma (c) Parenchyma (d) Phloem

Which of the following tissues has dead cells?