Question

the olympic mountains region is known for having mainly rugged mountains. diverse natural features. an unusable rocky coastline. farmable land and rolling hills.

Explanation:

The Olympic Mountains region is known for its variety of natural features including mountains, forests, coastlines etc. It's not just about rugged mountains, the coastline is not unusable, and it doesn't mainly consist of farmable land and rolling hills.

Answer:

B. diverse natural features