Answer:
This is the information that the question is referring to:
Martha Dave
Time to make a taco 10 minutes 15 minutes
Time to make a cake 20 minutes 30 minutes
Martha has a comparative advantage is the production of tacos, because it takes her less minutes to make a taco than it takes Dave.
Martha also has the comparative advantage in the production of cakes, because it takes her less time to make a cake than it takes Dave.