23 April is observed as –

World day for War Orphans
United Nations Day for South-South Cooperation
World Book and Copyright Day, recognized by the UN
International Day for Biological Diversity, recognized by the UN

The correct answer is: C. World Book and Copyright Day, recognized by the UN

World Book and Copyright Day is a yearly event celebrated on April 23, the date traditionally considered to be the death anniversary of William Shakespeare and Miguel de Cervantes. It was proclaimed by UNESCO in 1995, and is an opportunity to promote reading, publishing and copyright.

The day is also known as International Day of the Book and Copyright, and is celebrated in many countries around the world. In some countries, it is a public holiday, while in others it is a day for special events and activities related to books and reading.

The day was chosen to coincide with the death anniversaries of two of the world’s most famous writers, William Shakespeare and Miguel de Cervantes. Shakespeare was born in England in 1564 and died in 1616. He is considered one of the greatest writers in the English language, and his plays are still performed all over the world. Cervantes was born in Spain in 1547 and died in 1616. He is the author of the novel Don Quixote, which is considered one of the greatest works of literature in the Spanish language.

The day is an opportunity to celebrate the importance of books and reading in our lives. It is also a day to raise awareness of the importance of copyright protection. Copyright is a legal right that protects the original work of authors, artists, musicians, and other creators. It allows them to control how their work is used and to earn a living from their creativity.

World Book and Copyright Day is a time to celebrate the joy of reading and the importance of books in our lives. It is also a time to raise awareness of the importance of copyright protection.