Consumer surplus is the value of a good minus the cost of producing it, summed over the quantity bought

The above figure shows the marginal social benefit and marginal social cost curves of doughnuts in the nation of Kaffenia. What is the marginal social benefit from the 300th dozen doughnuts each day?

A) $10.00 per dozen B) $8.00 per dozen C) $6.00 per dozen D) $4.00 per dozen

Explain the determinants of investment. Include in your answer an explanation of how a change in each determinant affects investment

What will be an ideal response?