English homework help

1/Explain your thesis for Essay 4. Your answer should be one paragraph or longer. (Note: If still developing a thesis for Essay 4, then please explain your possible thesis.)
2/What is a preliminary bibliography? Answer in one paragraph or longer
3/In this course, there were four essay assignments focusing on different genres of writing. Which essay was easier for you to write: Essay 1, 2, 3, or 4? Answer in one paragraph or longer.
Note:
1 paragraph for 1 question. Each paragraph is at least 5-7 sentences (sentences is not too short)