I believe the answer is Austria.
Answer:
The Middle Colonies enjoyed a successful and diverse economy. Largely agricultural, farms in this region grew numerous kinds of crops, most notably grains and oats. Logging, shipbuilding, textiles production, and papermaking were also important in the Middle Colonies
Explanation:
so I guess its either shipbuilding or logging
Catherine and he had become lovers; no one told Catherine's husband, the Grand Duke Peter. Catherine saw Orlov as very useful, and he became instrumental in the 28 June 1762 coup d'état against her husband, but she preferred to remain the Dowager Empress of Russia, rather than marrying anyone.
Production of more food--the system allowed for more food to be produced which fed the workers in an industrial economy.
The 'four-field system' rotates crops between the 4 fields no longer needing to keep one empty because one of the crops would replenish the field with nutrients while the others take nutrients away from the fields. <span />
I think that the answer is: A