Which of the following have thick secondary cell walls strengthened with ligin,and support plants like steel beams in a building?

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Sclerenchyma cells have thick secondary cell walls strengthened with lignin, making them very strong and rigid. They provide structural support to plants, similar to steel beams in buildings. Parenchyma cells are more involved in storage and metabolism, collenchyma cells provide flexible support, and water-conducting cells (such as xylem and phloem) transport fluids throughout the plant.

Which of the Following Have Thick Secondary Cell Walls Strengthened