Read the instructions on the images. 10 sources are supposed to be used, there are already 8 given to you in the images. Get 2 more modern secondary sources on your own. Also, it doesn’t matter how many pages there are specifically, just make sure it falls within the word range.
All applicants go through a series of tests that check their level of English and knowledge of formatting styles. The applicant is also required to present a sample of writing to the Evaluation Department. If you wish to find out more about the procedure, check out the whole process.