Trichomes take part in (a) Transpiration and exchange of gases (b) Protection and reduction of transpiration (c) Exudation of water drops (d) Desiccation
Option B. Trichomes are the multicellular hair like shape present majorly on stem and leaves originate from the epidermal layer. They are glandular. Protects the plant from daylight and outer injuries. Prevent plant from water loss. enables plant in protection towards insects.