Which of the following mountain ranges is best known for its rich natural resources, including minerals and lumber?
a.
the appalachian mountains
b.
the laurentian mountains
c.
the rocky mountains
d.
the coast mountains

C.  the Rocky Mountains

Explanation:

The Rocky Mountains include 100 separate reaches, which are commonly isolated into four general groupings: the Canadian Rockies and Northern Rockies of Montana and northeastern Idaho; the Middle Rockies of Wyoming, Utah, and southeastern Idaho; the Southern Rockies, fundamentally in Colorado and New Mexico; and the Colorado Plateau in the Four Corners area of Utah, Colorado, New Mexico, and Arizona. These four subdivisions vary from one another as far as topography (source, ages, and sorts of rocks) and physiography (landforms, seepage, and soils), yet they share the physical characteristics of high heights (numerous pinnacles surpassing 13,000 feet [4,000 metres]), extraordinary neighborhood alleviation, shallow soils, significant mineral wealth, spectacular scenery from past glaciation and volcanic activity, and common trends in climate, biogeography, culture, economy, and exploration.

i also think it is c