A career field is a group of positions or job series that have occupational relationships
People write letters, journals,and diaries because some people can write about how they felt or to get ride of anger. Sometimes people will write about their mental problems and how that is affecting their lives everyday. some people write for the fun of it. some people records things in letters, journals, and diaries. Those are a few reasons why people write letters,journals,and diaries. <span />
D, 19th century refers to 1800 and 20th to 1900 but it doesn’t include/contrast past music, so wrong. C doesn’t help you with past music. B could be of use, but the report is about 1920 big band music and not hip hop. And A would allow you to have the best information from a first person source along with their contracting ideas with today’s and the pasts music, so A is the right answer.