Correct option is A
The correct answer is: (a), Both A and R are true and R is the correct explanation of A.
Christaller developed network of hexagonal complementary areas in central place theory: Christaller developed a network of hexagonal complementary areas in central place theory. This statement is true. Walter Christaller, a German geographer, proposed the concept of hexagonal market areas as part of his central place theory, which aimed to explain the spatial distribution of human settlements and economic activities.
The circular complementary areas were having gaps and overlaps: The reason provided in statement, explain why Christaller developed a network of hexagonal complementary areas. The hexagonal pattern was chosen because it offers a more efficient and systematic way of arranging market areas compared to circular areas, and it minimizes the gaps and overlaps between them.
Therefore, the correct answer is:
Both A and R are true and R is the correct explanation of A.