Use the Following to Answer Questions: Table: Production in the United

Use the following to answer questions: Table: Production in the United States and Germany $$\begin{array}{l}\text { Labor units required to produce: }\\\begin{array} { l c c } & \text { One Clock } & \text { One Sofa } \\\hline \text { United States } & 2 & 5 \\\text { Germany } & 3 & 9 \\\hline\end{array}\end{array}$$
-(Table: Production in the United States and Germany) According to the table, the opportunity cost of producing one sofa in the United States is _________, and the opportunity cost of producing one sofa in Germany is _______.

A) two clocks; three clocks
B) 10 clocks; 27 clocks
C) 0.4 clocks; 0.33 clocks
D) 2.5 clocks; three clocks