What method of navigation was popular in early Oceania and relies on careful observation of the natural world? (A) Celestial observation
(B) Global Positioning
(C) Wayfinding
(D) Inertial navigation

Wayfinding was the method of navigation used across Oceania.

Explanation:

ouThe Polynesians, a people group that inhabited the islands of Oceania, have a reputation as historically being the best sailors and navigators. These people were able to discover pretty much every island in Oceania, and when taken into consideration that they tend to be hunderds or even thousands of miles away it is highly impressive with the methods and technology they had.

The method of navigation was wayfinding, complemented with oral transmission of information as well. Basically, the Polynesians used every aspect of nature possible in order to navigate, from the positions of the stars to ocean currents, wind patterns, etc. Their canoes too were built for fast and very efficient sailing, being very lightweight, pointy and elongated, and easy to control. There seems to emerge pieces of evidence that in this manner the Polynesians even reached the American west coast way before the Europeans did.

you would travel west