Which of the following refers to Secondary growth in plants?

Which of the following refers to Secondary growth in plants?
[A]Development of secondary organs after the plant attains maturity
[B]Development of flowers and fruits
[C]Growth in length and development of new branches after the plant starts flowering
[D]Formation of secondary tissues by the activity of lateral meristems

Formation of secondary tissues by the activity of lateral meristems
Growth in vascular plants resulting from the production of layers of secondary tissue by a lateral meristem (the cork cambium or the vascular cambium). The new tissue accumulates and results in thicker branches and stems. Secondary growth occurs in gymnosperms, most eudicots, and woody magnoliids (such as the magnolia). Most monocots and herbaceous plants undergo little or no secondary growth but simply stop growing when their primary tissues mature.

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