Which of the Following Statements Most Accurately Describes the Time

Which of the following statements most accurately describes the time period known as the High Middle Ages?

A) This was a time period in which the Catholic Church monopolized political power.
B) This was a time period in which strong European monarchies began to emerge.
C) This was a time period in which Islamic expansion threatened the very existence of the West.
D) This was a time period in which Protestants and Catholics engaged in a bitter conflict.