Correct Answer : Option (C) - 23 April
Note : World Book Day is celebrated every year on 23 April. It is also known as World Book and Copyright Day, or International Day of the Book. It is organized by the United Nations Educational, Scientific and Cultural Organization (UNESCO) to promote reading, publishing, and copyright. It was first celebrated on 23 April 1995. For the year 2019, Sharjah, UAE has been declared as the World Book Capital. It will be preceded by Kuala Lumpur, Malaysia in the year 2020.