The correct answer is: a) Kaziranga and Manas National Parks.
Kaziranga National Park is a national park in the Golaghat, Karbi Anglong and Nagaon districts of the Indian state of Assam. It is one of the most important areas for the conservation of the Great Indian One-horned Rhinoceros. The park is also home to a variety of other wildlife, including tigers, elephants, wild water buffalo, swamp deer, and gaurs.
Manas National Park is a national park in the Manas district of the Indian state of Assam. It is a UNESCO World Heritage Site and is known for its biodiversity. The park is home to a variety of wildlife, including tigers, elephants, rhinoceroses, wild water buffalo, and gaurs.
Majuli and Sivasagar are two districts in the Indian state of Assam. Majuli is the largest river island in the world, while Sivasagar is home to a number of historical monuments, including the Sivasagar Fort.
Guwahati and Dibrugarh are two cities in the Indian state of Assam. Guwahati is the largest city in the state and is a major commercial and cultural center. Dibrugarh is a major industrial city and is known for its tea gardens.
Tea gardens are not a popular tourist activity in Assam.