In some trees, copper deficiency may cause blisters and deep slits in the bark from which exudes gum. This disease is known as

In some trees, copper deficiency may cause blisters and deep slits in

1.	In some trees, copper deficiency may cause blisters and deep slits in the bark from which exudes gum. This disease is known as
A.	Exanthema
B.	White bud
C.	Dieback
D.	Necrosis
Answer» B. White bud