The correct answer is - C. geography.
Wales and Scotland are both part of the United Kingdom. Even though Wales is located on the western part of the country, while Scotland is located in the northern part, they share a relatively similar geography.
Both Scotland and Wales are dominated by mountains and hills, mountains and hills that have originated at the same time, and are very old, formed with the Caledonian orogenesis. The lowlands are scattered between the mountains and hills, and they are relatively small. Both have coastlines that are including little peninsular looking parts that go deeper into the sea, parts where the water is coming deeper into the mainland, and in general the coastline being very jagged. Also, they are mostly covered with grasslands which are green for most of the year, so the landscape is also very similar.
