Match List – I (Triangulation station) with List – II (Deflection) and select the correct answer using the code given below the lists:

	List – I		List – II
A.	Main stations	1.	Control points of triangulation network
B.	Subsidiary stations	2.	Points not for observation but for continuation of triangulation network
C.	Satellite stations	3.	Points to provide additional rays to intersected points
D.	Pivot stations	4.	Points close to main stations to avoid intervening obstructions