The correct pair of famous shrine and location is 1 only, which means only Tabo monastery and temple complex is located in Spiti Valley.

Tabo monastery is one of the most important Buddhist monasteries in the Spiti Valley region of Himachal Pradesh, India. It was founded in 996 CE and has been declared as a UNESCO World Heritage Site. The monastery complex consists of nine temples, several stupas, and cave shrines, all of which are decorated with exquisite wall paintings and intricate sculptures. The Tabo monastery is particularly famous for its ancient manuscripts and murals, which are some of the oldest surviving examples of Indo-Tibetan Buddhist art.

Lhotsava Lhakhang temple is located in the Nako village of Kinnaur district in Himachal Pradesh. It is a Buddhist temple that was built in the 11th century and is considered one of the oldest and most important Buddhist temples in the region.

Alchi temple complex is located in the Ladakh region of Jammu and Kashmir. It is a complex of Buddhist temples and monasteries that were built between the 10th and 12th centuries, and are famous for their unique style of art and architecture. The temples are particularly noted for their elaborate wood carvings and frescoes, which are considered some of the finest examples of Buddhist art in the world.