The following table describes the production possibilities of two cities in the country of Baseballia

The following table describes the production possibilities of two cities in the country of Baseballia:
PAIRS OF RED PAIRS OF WHITE SOCKS PER WORKER SOCKS PER WORKER
PER HOUR PER HOUR BOSTON 3 3 CHICAGO 2 1
a. Without trade, what is the price of white socks (in terms of red socks) in Boston? What is the price in Chicago?
b. Which city has an absolute advantage in the production of each color sock? Which city has a comparative advantage in the production of each color sock?
c. If the cities trade with each other, which color sock will each export?

d. What is the range of prices at which trade can occur?