Correct Answer: sclerenchyma

Solution : The correct answer is sclerenchyma.

The husk of a coconut is made primarily of a type of tissue called sclerenchyma. It is a specialised type of plant tissue known for its hardness and rigidity, which is due to the presence of thick, lignified (woody) cell walls. This tissue provides structural support to the coconut and helps protect the inner seed (endosperm) as it develops.