What is pepys primary purpose for keeping his diary?

The correct answer is, Samuel Pepys wrote his diary to record the conflictive moments that England was living.  

Samuel Pepys studied mathematics and liked art and music. He started to write its diary in an important transition time in England. His diary is considered one of the most famous in Great Britain. He started the diary in January 1660 and finished in May 1669. Samuel Pepys wrote his diary to record the conflictive moments that England was living such as the arrival of King Charles II to the crown, the Plague, and the fire over London.

im pretty sure it's -is

Explanation:

Which sounds better?

The author of the stories in these books are Jackie

The author of the stories in these books is Jackie

I think are is when theres an 's' at the end