With the growth of industrialization, many countries in
Europe experience an increase of wealth.
This also led to competition among European countries. They saw a need to protect their interest and
with that they began to strengthen their military and this led to formation of
alliances. As competition became more
intense it affected political affairs as well which later lead to war.
Queen Elizabeth never had any children. That's why she is known as the Virgin Queen. But there was a rumor that she did but obviously if its a rumor then A is not an option. The rest of all the answers are correct.
