The correct answer is: B. International Tea Day
International Tea Day is celebrated on 15 January every year. It was established by the International Tea Committee in 2005 to raise awareness of the importance of tea in the world. Tea is the second most popular drink in the world after water, and it is grown in over 50 countries. It is a major source of income for millions of people around the world.
World Earth Day is celebrated on 22 April every year. It is a day to raise awareness of the importance of protecting the environment.
National Army Day is celebrated on 15 January every year in India. It is a day to commemorate the sacrifices made by the Indian Army.
World Book Day is celebrated on 23 April every year. It is a day to promote reading and literacy.