Select all the correct answers.
what were three lasting contributions of the ancient phoenicians?
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advanced shipbuilding techniques
direct democracy
written alphabet
theory of hellocentris
deep-sea navigation methods

E. deep-sea navigation methods.

Explanation:

The Phoenicians were experts when it came to sailors. They were also credited for discovering how to use the North Star for navigation. Because of this the Phoenicians could sail on the open seas and also in the oceans. This navigation technique helped the Phoenicians no longer had to use the coastline as their navigational aid. This information was later on shared by the Phoenicians with the Greeks and other Mediterranean cultures.

both include an amendment process.