without trade, England produced and consumed 32 units of cheese and 2 units of bread and spain produced and consumed 6 units of cheese and 2 units of...

Please Explain Whya. 0 units of cheese and 0.5 unit of bread and Spain gained 1 unit of cheese and 0.5 unit of bread.b. 1 units of cheese and 0.5 unit of bread and Spain gained 1 unit of cheese and 0.5 unit of bread.c. 7 units of cheese and 2.5 unit of bread and Spain gained 7 unit of cheese and 2.5 unit of bread.d. 33 units of cheese and 2.5 unit of bread and Spain gained 7 unit of cheese and 2.5 unit of bread.AND Why is that Answer.