28 September is celebrated as –

Malala Day
World UFO Day
World Book Day
World Rabies Day

The correct answer is: D. World Rabies Day

World Rabies Day is an annual event observed on September 28 to raise awareness about rabies and its prevention. It was first observed in 2007 by the World Health Organization (WHO) and the World Organization for Animal Health (OIE).

Rabies is a viral disease that affects the central nervous system of mammals. It is almost always fatal if not treated. The virus is transmitted through the bite of an infected animal, usually a dog.

World Rabies Day aims to raise awareness about the importance of rabies prevention, including vaccination of dogs and other animals, and to promote the development of new strategies to control and eliminate rabies.

The other options are incorrect because:

  • Malala Day is celebrated on July 12 to commemorate the birthday of Malala Yousafzai, a Pakistani activist for female education and the youngest Nobel Prize laureate.
  • World UFO Day is celebrated on July 2, the date in 1947 when Kenneth Arnold reported seeing nine flying discs near Mount Rainier in Washington.
  • World Book Day is celebrated on April 23, the date in 1616 when William Shakespeare and Miguel de Cervantes died.