They had to cut their armies down to just 100,000 men and basically had to get rid of their air force and navy.
OK! so i just did this question not too long ago after studying it my answer was "C"
The correct answer is:
A) During the Crusades.
The exchange of new ideas and inventions made throughout the Crusades is considered the earliest beginning of the Renaissance.
The Crusades increased the interest in travel and discovering Europe, which may have lead to the Renaissance. Furthermore, the Crusades serviced an increment in trade and reduced the power of European Nobles, the key to bring about the Age of Exploration.