On page 2, how does Hoto-Matua's decision to build a monument to his ancestors advance the plot of the story created by the journal entries

It sparks an important cultural tradition on the island.

Explanation:

Hoto Matua was the first settler to have been arrived on Easter Island. He was the first and the greatest king of Rapa Nui. it is said, that Hau Maka had a dream in which the spirit led him to an island as a new residence for his king.

After arriving at the land, the settlers began to spread across the land and sub-divide the land among themselves according to their clans.

The decision of building a monument on the island by Hoto Matua suggests the beginning of important cultural traditions on the island. The moai (statues) were carved to remember important ancestors. The culture remained there for nearly a thousand years.