Explanation
- A
4 3 2 1
Option (a) pairs Planting Hearth with Arctic Tundra, which is incorrect since Planting Hearth is associated with C.O. Sauer. Therefore, this sequence fails the correct matching of geographical concepts and their proponents or regions.
- B
3 4 2 1
Option (b) correctly matches Planting Hearth with C.O. Sauer (3), Cryophyte Steppe with Arctic Tundra (4), World Floral Regions with Adolf Engler (2), and Puszta Grassland with Hungary (1). This provides the exact pairing of all list items as established in biogeography and cultural geography.
- C
3 4 1 2
Option (c) incorrectly places Hungary under World Floral Regions and Adolf Engler under Puszta Grassland. This disrupts the valid pairings required by the matching lists.
- D
1 2 3 4
Option (d) starts by matching Planting Hearth with Hungary, which is historically and geographically inaccurate. Thus, this option fails to align any of the correct definitions and attributions.
Summary. Official key is (b) 3 4 2 1. This question tests the matching of geographical and botanical concepts with their respective originators or regions. Planting Hearth is propounded by C.O. Sauer, Cryophyte Steppe corresponds to the Arctic Tundra, World Floral Regions were classified by Adolf Engler, and Puszta Grassland is found in Hungary. Option (b) is the only sequence that correctly arranges all these specific associations without error.