The mechanism of edema in the homolateral arm of breast carcinoma treated with radical surgery is ( )
选项：

A:Increased capillary hydrostatic pressure due to congestion in operation;
B:Increased capillary permeability due to vessel impairment in operation;
C:Decreased plasma colloid osmotic pressure due to plasma loss in operation;
D:Lymphatic obstruction due to removal of lymph nodes in operation;
E:Increased tissue colloid osmotic pressure due to tissue damage in operation