The correct answer is (a) Phawngpui.
Phawngpui, also known as Blue Mountain, is the highest peak in Mizoram, India. It is located in the Champhai district of Mizoram, and is part of the Lushai Hills. The peak is 2,157 meters (7,074 feet) above sea level.
Phawngpui is a popular tourist destination, and is known for its beautiful scenery. The peak is also home to a variety of plant and animal life.
The other options are incorrect.
(b) Lengteng is a peak located in the Serchhip district of Mizoram. It is 2,094 meters (6,867 feet) above sea level.
(c) Mawma is a peak located in the Lawngtlai district of Mizoram. It is 2,083 meters (6,834 feet) above sea level.
(d) Zopui is a peak located in the Aizawl district of Mizoram. It is 2,050 meters (6,725 feet) above sea level.