If the instant communication of today had been available when Europeans explored the world, this could have affected events by lowering people's curiosity on what to discover and this could have sped up competition.
I not sure i quite understand your question, could you try rewording it please?
<span>For the first time, African-American soldiers were integrated into the general military.</span>
The three estates of Medieval Europe were Church, Nobility, and Peasantry. The clergy were the people who performed the religious duties and they were in the Church estate, therefore the answer is A.
