___________ modified Von Thunen’s model of Land use in 1925.

Correct option is A

The correct answer is: (a), Jonasson
Olof Jonasson, the Swedish geographer, modified the von Thunen’s model, relating to the economic rent of land in relation to market and means of transportations.
Jonasson has applied this model the agricultural landscape patterns of Europe in 1925. He observed that in Europe and North America, zones of agricul­tural land use were arranged about the industrial centres.