Problem 1) The Reformation(s): long-term and immediate causes, key individuals involved, why there are different sects, the Catholic Church's response.
Problem 2) The Reformation(s): a comparison of the different Protestant sects - The main focus of this essay should be similarities and differences in doctrine,
Problem 3) The Reformation(s): how and why the Reformation in England differs from the rest of the Reformation - This requires comparing the causes of the Reformation in England with the causes of the Reformation elsewhere, but also requires comparing the doctrines of the Church of England with those of the other Protestant sects. It is, in essence, a combination but with the focus on England. Do not forget that the English Reformation changes over time!