What were the three lasting contributions of the ancient phoenicians
a: advanced shipbuilding techniques
b: direct democracy
c: written alphabet
d: theory of heliocentricism
e: deep-sea navigation methods

A: Advanced shipbuilding techniques.

C: written alphabet.

D: theory of heliocentricism.

Explanation:

The Phoenicians were an ancient people that lived between 1500 BC and 300 BC. The Phoenicians originated in regions of Lebanon, Syria and north Palestine. They eventually expanded and founded colonies far from this region, such as Carthage in North Africa and Cadiz in Spain. The Phoenicians were particularly well-known for their navigation skills and their alphabet, which was very influential in ancient languages.

if i knew what was the answer i wouldve put it

the answer is option a.