Lou and Alex Live Together and Share Household Chores For Alex,the Opportunity Cost of Cleaning One Room Is ____

Lou and Alex live together and share household chores.They like to cook some meals ahead of time and eat leftovers.Suppose that in one hour Lou and Alex can do the following: $$\begin{array} { | l | l | l | } \hline & \text { Alex } & \text { Lou } \\\hline \text { Whole Hour Cleaning } & 3 \text { rooms } & 5 \text { rooms } \\\hline \text { Whole Hour Cooking } & 3 \text { meals } & 4 \text { meals } \\\hline 1 / 2 \text { hour, Each Activity } & 1.5 \text { rooms; } 1.5 \text { meals } & 2.5 \text { rooms; } 2 \text { meals } \\\hline\end{array}$$
For Alex,the opportunity cost of cleaning one room is ____ meal(s) ;for Lou the opportunity cost of cleaning one room is _____ meal(s) .

A) 4;4
B) 1;4/5
C) 1;5/4
D) 3;5