Choose the meristems not involved in secondary growth.

A. Apical meristems

B. Intercalary meristems

C. All primary meristems.

D. Cylindrical meristems.

Apical and intercalary meristems are involved only in primary growth. Lateral meristems or all secondary meristems are involved only in secondary growth. Fascicular cambium of dicot and gymnosperms stems is the only primary meristems not involved in primary growth but involved in secondary growth.