Question

Orthophoto maps depict certain areas using

Answer 1

Hello There!

I'd say it is B.

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Answer 2

Orthophoto is aerial photograph with uniform scale. These photos are used as a base for the orthophoto maps.
Orthophoto maps are combination of  conventional line maps and aerial photography. They are used for detail planning and analysis of what exists on the ground. 
Orthophoto maps depict certain areas using color-enhanced photography.
Solution:C