Pick up the correct statements from the following:

1.	Pick up the correct statements from the following:
A.	racks appear on the plastered surface in the form of hair cracks
B.	n brick work, the efflorescence is removed by applying a solution of zinc sulphate and water
C.	xcessive thermal variations in the backing or plaster causes the plaster to fall
D.	ll the above
Answer» E.

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Pick up the correct statements from the following:

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