In what ways might property rights achieve more efficient outcomes in markets containingexternalities?

There is more than one answer

a)Property rights provide incentives to supply the optimalamount.

b)With property rights, the marginal social cost curve becomes the marginal private costcurve.

c)Property rights enforce productionquotas.

d)With property rights, the marginal social benefit curveincreases.

e)Property rights help avoid the tragedy ofcommons.