When introducing your own major, you decide to choose the organizational patterns called chronological. Which of the following is a chronological pattern? （ ）

A、You begin by explaining why your major is important, and then telling why you chose it personally.
B、You begin by describing how your major was founded in your university, and then describing how it is operated today.
C、You begin by telling where your department is located on campus, and then describing how your department can be found on the campus map.
D、You begin by describing what jobs students graduating from your major can offer to fill in, and then telling people how important it is to study your major.