Which of the following are the essential features of weak sustainability ?

A. It considers human-made capital and natural capital as close substitutes.

B. It puts emphasis on the initial size of an economy since the size of the initial capital stock is considered relevant.

C. It requires from each generation to ensure that their actions do not compromise the productive capacity of the generations to follow

D. the composition of the capital stock of an economy does not hold great significance

E. It renders natural capital as an absolute necessity for sustaining net national income over an indefinite period.

Choose the most appropriate answer from the options given below: