The correct answer to this open question is the following.
Here is how England became a Protestant country as the Church of England replaced the Roman Catholic Church.
English king Henry VIII was worried that his wife could not give him the son he desired and needed, so he asked the pope that the Catholic church cancel his marriage. We wanted to divorce from Catherina Aragon and he had planned to marry Anne Boleyn.
Of course, the answer from the pope was a loud "no." Henry infuriated by the pope's decision and decided to break from the Catholic church and started his own church. And with the approval of the British Parliament, he became the leader of the Church of England.
Not all the British agreed with the decision to split with the church of Rome and showed its opposition. However, the king did not respect their decision and these people were persecuted.