Correct option is B
The tree that produces silk cotton and kapok is (b) Ceiba pentandra. Commonly known as the kapok tree, it is native to the tropical rainforests of Central and South America, as well as parts of Africa and Asia. The fibers from its seed pods are used to make kapok, a fluffy, lightweight material with insulating properties. Additionally, the tree is also known for producing silk cotton, another fibrous material.