How did the Khmer civilization shape culture in Southeast Asia? Select the two correct answers.(1 point)

Developed writing systems that spread throughout Asia.

Used irrigation canals and reservoirs to support large scale farming

Built vast Buddhist temple complexes.

Innovated a feudal system based on the loyalty of samurai warriors.

The two correct answers are:

1) Developed writing systems that spread throughout Asia.

2) Built vast Buddhist temple complexes.