Answer:Going to say A. Brazil, Hope this helps! enjoy your day/night.
Explanation:
True:As adopted children grow older, their intelligence scores become more similar to those of their biological parents than to those of their adoptive parents.
HIGHER WITH ADOPTIVE PARENTS
The difference was that serfs were required to work for their lord and give him food for exchange of protection when war times appeared. Peasants, on the other hand, had no obligation to do so, they were just people who were agricultural workers and were growing crops.
Put very simply, as one muscle contracts, the corresponding muscle relaxes.