Consider the case of two countries, Afghanistan and the US, both producing carpets and fighter aircraft. The tale below shows output rates per day in the two countries if all resources are fully and efficiently employed. An appropriate international exchange ratio that would allow mutually advantageous trade to take place would be:

Select one:

a. B. 1 aircraft = 22 carpets.

b. 1 aircraft = 25 carpets.

c. 1 carpet = 4 aircraft.

d. 1 carpet = 0,04 aircraft.

e. 1 aircraft = 20 carpets.