A.It is carried out in terms of economic value
B.We do not take into account tangible and intangible benefits
C.It is carried out in term of social benefits and social costs
D.All of the above
A.It is carried out in terms of economic value
B.We do not take into account tangible and intangible benefits
C.It is carried out in term of social benefits and social costs
D.All of the above