Please help me with the question b,c,d. thank you.

1. A country can provide two goods, sandwiches and pizza ovens. The country has 500 units of labour to use each day. The chart below illustrates the amount of each good that can be produced by various amounts of labour. Labour used (units per day) 0 100 200 300 400 500 Sandwiches ('000 per day) 0 15 OR 27 OR 37 OR 45 OR 50 OR Pizza Ovens (# per day) 0 2 4 6 8 10 a. Create a table showing the efficient combinations of sandwiches and pizza ovens that can be produced in one day. (2 marks) b. Plot the PPF on a graph, please be sure to label your graph clearly and indicate at least two production points. I am asking you to use a grid for the graph, you may download graph paper for free or use something like OneNote to create your graph. (3 marks) c. If 2 pizza ovens are produced per day how many thousands of sandwiches must be produced to achieve productive efficiency? Please explain in one sentence. (2 marks) d. Calculate the marginal cost(s) of a sandwich for this graph. Please show your work (2 marks) e. Calculate the marginal cost of a pizza over the range of 8 pizza ovens to 10 pizza ovens. Be sure to show your work. (1 mark)