Ibn Battuta's Accounts of the Various Areas He Traveled Are

Ibn Battuta's accounts of the various areas he traveled are an important tool for scholars because

A) his accounts give exact dates and locations.
B) they were translated into Arabic.
C) the notes were analyzed and interpreted in the learning center in Baghdad.
D) he wrote alphabets for many indigenous peoples.
E) his notes are the only source of information about this area up to this time.