Jackson introduced policies about universal male suffrage which increased the number of voters. Before those policies, only those who belonged to certain religions or those who were property owners were allowed to vote. After those policies, all men of age were allowed to vote regardless of their religion or their ownership status.
Answer:
C. helped strengthen Christianity in Europe.
Explanation:
Pope Leo III crowned Charlemagne Holy Roman Emperor on Christmas Day, 800, in Rome. The event was significant for several different reasons. For Charlemagne, it meant that the Church, very powerful in early medieval Europe, gave its sanction to his rule.
I believe the answer is A, Pollution of the environment, hope this helps :)