Which assumptions supports Von Thunen's model regarding land use planning?
1. Isotropic plain (homogeneous space)
2. Varying soil fertility
3. Single central market
4. Uniform transportation costs
1
1, 2, and 3 only
2
1, 3, and 4 only
3
2, 3, and 4 only
4
1, 2, and 4 only