Which of the following assumptions are true for Losch's modification of Christaller’s model?
A) Losch’s model emphasized maximizing consumer welfare through efficient market areas.
B) The K-values in Losch’s model are fixed and rigid.
C) Losch allowed for a flexible hierarchy of central places.
D) Losch’s model proposed circular market areas instead of hexagonal ones.
Select the correct combination:
1
A and B
2
B and D
3
A and C
4
C and D