In an hour, Henry can wash 20 windows or clean 2 bath tubs. In an hour, Rose can wash 30 windows or clean one bath tub. If their father Dave allows them to trade chores to achieve gains from trade, who will specialize in what?

Henry will wash the windows; Rose will clean bath tubs.

Henry and Rose will both clean bath tubs.

Henry will clean bath tubs; Rose will wash the windows.

There are no gains from trade in this situation.

If their father Dave allows them to trade chores to achieve gains from trade then "Henry will clean bath tubs; Rose will wash the windows".

Option: C

Explanation:

In this scenario Henry is washing 20 windows or 2 bath tabs in an hour, which showcase his average washing of 10 windows over 1 bath tab in half hour. While here Rose is washing 30 windows or 1 bath tab in an hour by giving average of 15 windows over half bath tab in half hour, which is less than Henry's average of washing.

Thus on considering the above average of work performed by Henry and Rose in equal amount of given time for work, Henry is more prominent to be specialized in cleaning bath tubs while Rose will more expert in washing windows because she is cleaning more windows than Henry in same on hour of time.