Answer:
Building crafts to sail the seas
Explanation:
The Lapita culture refers to prehistoric people who lived from about 1600 BCE to about 500 BCE. They were located in the Pacific Islands.
The region they lived had more sea water than land, there were many islands. So, one of their main problems was to transport across the water to get to other lands. Therefore, these navigation dificulties obligated them to build crafts that would made them able to sail the seas.
Lapita culture is characterized by being experts seafarers and navigators, finding other lands, thanks to all crafts the built.
Therefore, the right answer is D. building crafts to sail the seas.