In Christaller’s model, the hierarchy levels are :
(1) K3 — Market Principle
(2) K4 — Transport Principle
(3) K7 — Administrative Principle
(4) K9 — Industrial Principle
Find out the correct combination of answer according to the code :
1
(1), (2) and (3)
2
(2), (3) and (4)
3
(1), (3) and (4)
4
(1), (2) and (4)