For Each Wristwatch Denmark Produces, It Gives Up the Opportunity

For each wristwatch Denmark produces, it gives up the opportunity to make 50 kilograms of cheese.Germany can produce one wristwatch for every 100 kilograms of cheese it produces.Which statement describes the related opportunity costs in the two countries?  

A)  The opportunity cost of producing wristwatches is higher in Denmark than in Germany. 
B)  The opportunity cost of producing cheese is higher in Denmark than in Germany. 
C)  The opportunity cost of producing cheese in Denmark is identical to that in Germany. 
D)  In both countries, the opportunity cost of one wristwatch is 150 kilograms of cheese.