What is the difference between map generalization and spatial interpolation? (this question is related to Geographic Information System course)

Measurements distance between two points A and B on unknown mapping scale found equal to 400 m. while measured the same distance at map have scale 1:200 found equal to 50 m find the mup scale

1 In the figure shown, if the index contour "A" is equal to 150 m, and the scaled horizontal distance from point "B" to "C" is 3.0 km. c) It is required to build a miniature of the map, having a scale of 1/2,500. What will be the height of points "C" to "A" 40 mm 80 mm 20 mm 100 mm 60 mm 120 mm None of the Choices 100m