Below is a list of plant. From which part of the plant these are obtained.
(a) Coir
(b) hemp
(c) cotton
(d) jute.

Explanation

(a) Coir it is a natural fibre obtained from husk of coconut. It is the fibrous mesoderm of the coconut fruit Cocus nucifera
(b) Hemp The fibre is obtained from the stems of Cannabis sativa. It is the bast fibre (soft or stem fibre) obtained from secondary phloem
(c) Cotton The fibre is the epidermal growth of cotton (Gossypium hirsutum) seed. It is elongated structure made up of cellulose
(d) Jute it is a natural bast fibre obtained from Corchorus capsularis and made up of cellulose and lignin.