What was the correct sequence of ice ages that occurred in North America during the Pleistocene period?

Correct option is B

The correct sequence of ice ages in North America during the Pleistocene period is Nebraskan - Kansan - Illinoian - Wisconsin. These glacial periods are named after states in the U.S. where the evidence of each stage was first studied. The Pleistocene is marked by repeated cycles of glacial advance and retreat.
Information Booster:
1. Nebraskan Glaciation: The earliest recognized glaciation in North America.
2. Kansan Glaciation: Followed the Nebraskan and marked another significant ice advance.
3. Illinoian Glaciation: The third major glaciation, with evidence found in Illinois.
4. Wisconsin Glaciation: The most recent and extensively studied, responsible for shaping much of the current landscape.