Technology progresses when current technologies become obsolete. Some examples of obsolete technologies include A. Fault screen and touch screen
B. Robots and remotes controlled devices
C. typewriters and VHS tapes
D. keyboards and CDs

In the following diary excerpts, which statement is most clearly using a reference to the time to convey a specific tone a.) we camped for nine days b.) march 2-11; camped at clearing c.)the week seemed to last a year d.)after a week, we left the site