The correct answers are:
B. Russia withdrew from the war.
C. Germany could turn all its attention to the western front.

Answer:
Nerva, Trajan, Hadrian, Antonius Pius, and Marcus Aurelius.
Explanation:
Although their rules were all unique in their own ways, they are most remembered for two main things. First, the Five Good Emperors brought relative peace and prosperity to Rome.
Answer:
Nicholas II had already known everything, and the tragedy made him terribly upset. Later he wrote in his diary: “These news had left me a disgustful impression”, calling the stampede “a great sin”. Anyway, he had decided to continue the celebrations.