Exhibit 2-1 -Refer to the Exhibit

Multiple Choice

Exhibit 2-1
$$\begin{array} { l r r } & \text { Hans } & \text { Maria } \\\hline \text { Loads of laundry per hour } & 4 & 12 \\\text { Pages typed per hour } & 6 & 8\end{array}$$
-Refer to the exhibit.When would Hans and Maria both be better off?  

A)  if Hans specialized in typing and Maria specialized in doing laundry 
B)  if Hans specialized in doing laundry and Maria specialized in typing 
C)  if Maria did all of the typing and all of the laundry 
D)  if Hans did all of the typing and all of the laundry