The correct answer is: A. 1999
Mhadei Wildlife Sanctuary is a wildlife sanctuary in the Indian state of Goa. It was established in 1999 and covers an area of 1,250 square kilometers. The sanctuary is home to a variety of wildlife, including tigers, leopards, elephants, and deer. It is also home to a number of important rivers, including the Mhadei River, which is the source of the Mandovi River.
Option B is incorrect because the Mhadei Wildlife Sanctuary was established in 1999, not 2000.
Option C is incorrect because the Mhadei Wildlife Sanctuary was established in 1999, not 1995.
Option D is incorrect because the Mhadei Wildlife Sanctuary was established in 1999.