In which of the following fruit crops secondary growth in stem as well as in the root is absent: (MPSC Mains pepar-2, 2016)

✅Explanation: Coconut palms belong to the family Arecaceae (formerly Palmae), which are monocotyledonous plants. Monocots typically lack secondary growth, meaning they don't have the ability to increase the girth of their stems and roots through the activity of a vascular cambium.

📌 Other Options Explanations:
-Mango and cashew nut are dicotyledonous plants, which generally exhibit secondary growth.