Refer to the given dichotomous key and select the incorrect statement regarding P, Q, R, S and T.(i) (a) It is a natural fibre. - Go to (ii)(b) It is a man-made fibre. - [P](ii) (a) Fibre is obtained from plants. - Go to(b) Fibre is obtained from animals. - Go to (iv)(iii) (a) Fibre obtained from stem. - [O](b) Fibre obtained from seed. - [R](iv) (a) Fibre obtained by harming source organism - [S](b) Fibre obtained without harming source organism. - [T]

• A. Fibre P is quick burning and shrinks away from flame giving slightly sweet chemical odour.
• B. Q could be obtained from Corchorus capsularis while R could be obtained from Gossypium hirsutum.
• C. Fibre S is obtained from an insect whereas fibre T is obtained from a mammal.
• D. Fabric made of S can be worn in all seasons whereas fibre Q can be used to make a raincoat.