Questions and Answers：Give a brief answer to each of the following questions in English.What does Shakespeare write in his history plays?
A. HIS PLAYS ARE WRITTEN UNDER THE PRINCIPLE THAT NATIONAL UNITY AND SOVEREIGN IS A NECESSITY. THE THREE HISTORY PLAYS ON THE STAGE OF HENRY VI ARE THE BEGINNING OF SHAKESPEARE'S EPIC TREATMENT OF ENGLISH HISTORY.
B. IT REVEALS A TROUBLED REIGN IN THE 15TH CENTURY. SHAKESPEARE PRESENTS THE PATRIOTIC SPIRIT WHEN MOURNING OVER THE LOSS OF ENGLISH TERRITORIES IN FRANCE.
C. HE DRAMATIZED THE CLASS STRUGGLE BETWEEN THE OPPRESSORS AND THE OPPRESSED DURING THE JACK CADE'S RISING. HE CONDEMNS THE WAR OF THE ROSES.