Context: My aunt has loaned me my maternal grandfather 's journal , which he wrote in as a soldier in World War II . My grandfather was of African American and Native American descent and so fought in a segregated unit . One of the first entries I found was written on D - Day .
Question: Why would the narrator be so impressed with the journal ?
Option 0: It is from the first integrated military unit .
Option 1: It is from a historic period .
Option 2: It is from WW1 .
Option 3: It is from their grandmother .
Answer: 1