Examine the list and answer the following question: which items on the list are primary sources a historian could use to understand why egyptian citizens participated in the political revolution that occurred in egypt in 2011? a diary entry written by one of the revolution's founders. an article predicting how the revolution will impact the rest of the world a photograph taken at the revolution's largest rally a film recreating some of the most important events of the revolution a. i and iii b. ii and iv c. i and iv d. iii and iv the answer is a