Following the fundamental principles of surveying, the minimum number of control points
required for establishing a new station is ________.

Correct option is C

The fundamental principles of plane surveying
are:-
1. Location of a point by measurement from two point of reference: Two control points are selected in an area and the distance between them is measured accurately.
2. Working from whole to the part: Major control points are selected and measured first with high
degree of precision, minor details can be collected later on even with less degree of precision. In this
manner, errors involved in minor detailing will be compensating and will not affect the major
dimensions
• The main idea of working from whole to part is to localise errors and prevent their accumulation.