PLEASE HELP!!!! 
 5. Which of the following is the main reason Gies
 preserved Frank's diary?
 A Gies wished to return the diary to Anne's father,
 Otto, the only surviving member of the family.
 B Gies knew that the diary would be of great
 importance to the world and therefore decided to
 preserve it.
 C Gies wanted to prove to the Nazi soliders that the
 Frank family would never be forgotten.
 D Gies sought to return it to Anne in order to bring
 her joy.