Consider the following statements regarding base-line measurements :1. Very precise measurement can be done only on densely cloudy days or at nights.2. Error due to application of non-standardised pull on the tape can be either cumulative or compensating type.3. Intermediate obstructions in the measurement of base-lines can be cleared by erecting towers.Of these statements :

Consider the following statements regarding base-line measurements :1.

1.	Consider the following statements regarding base-line measurements :1. Very precise measurement can be done only on densely cloudy days or at nights.2. Error due to application of non-standardised pull on the tape can be either cumulative or compensating type.3. Intermediate obstructions in the measurement of base-lines can be cleared by erecting towers.Of these statements :
A.	1, 2 and 3 are correct
B.	1 and 2 are correct
C.	1 and 3 are correct
D.	2 and 3 are correct
Answer» D. 2 and 3 are correct

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