A geographer who studies how people learn to live with nature's challenges, like cold weather, most often studies which of the six essentail elements of geohraphy?

Ithink the answer to that would be b):

The answer is c, i, iii, and iv. this is because farming and mining deal with harvesting raw materials, construction work falls under manufacturing, and piloting a plane is a service. ii is wrong because making bread is using  raw materials to produce goods, which would fall under the secondary sector, not primary.

The saharan africa is desert not forest