Which of the following are true in case of social goods:

A. Public goods are non-rivalry in nature.

B. Efficient provision of social goods needs a political process of budget determination.

C. Efficient provision of social goods involve horizontal rather than vertical addition of individual pseudo-demand-lines.

D. Among purely private and purely social goods, there are mixed cases which generate benefit or cost externalities

E. Individual consumers will not bid for social good, but will act as free-riders.

Choose the correct answer from the option given below: