Correct option is B
Gun cotton, also known as nitrocellulose or cellulose nitrate, is a highly flammable compound formed by treating cellulose with nitric acid. It was used as an early form of smokeless gunpowder and is also utilized in the production of various explosives.
Gun cotton was discovered in the 19th century and was quickly adopted for military applications due to its explosive properties. It is more powerful and produces less smoke than traditional black powder, making it ideal for modern weaponry.
