The correct option is D Raincoats
Cotton fibre is easy to carry and comfortable to wear. Thus, it is used for making shirts, bedsheets and socks.
Cotton has high water absorbing capacity and takes hours to dry. Thus, it cannot be used to make raincoats as they are used to protect us from rainwater.
So, raincoats are made from fibres like polyesters which have less or no water absorbing capacity.