Answer:
Russia concerned both of them because at that time in the war Russia was the powerhouse, they had it all, technology wise and climate wise. They could not be attacked because of their harsh winters and they could attack at any time because they had the upper hand in military technology.
A)the quantities of gold and silver brought back to Italian explorers
<span>b)concentration of riches in the hands of the king and his court </span>
<span>c)their participation in trade between Europe and the East </span>
<span>d)the location of the Vatican in Italy</span>
