In what ways can the pre-Columbian civilizations in the Americas be considered advanced?

In their agricultural practices and Architectures

Explanation:

During the pre-columbian civilizations, people in South America was already known to implement several techniques and technologies that can still implemented by many societies today.

For example:

- Specialization in crops.

Many evidence found that pre-columbian civilizations understand really well the type of crops that can grow in the climate within their region. So, they prioritized their resoruces on growing that crop to maximize their production.

- Irrigations

Pre-columbian civilizations already implemented a technology to distribute water from sources such as lake and river to the regions that located far away from the sources. Many histories even suggested that Spanish empire adopted this technology into their agricultural system during the colonization period.

- Architecture

The architectural structure that found for gatherings and ceremonies in this region require profound knowledge in geometry. Which considered to be advanced for civilizations within that time period.

the answer is d. amendments.