A "Digital immigrants" refers to the fact that the students are immigrating to a new world, different from the one they were born into.
B "Digital natives" means that the educators are familiar with the new electronic devices, because they grew up in this technological environment.
C "Digital natives" and "digital immigrants" are used to symbolize the extreme intimacy of students and educators with technology.
D "Digital natives" and "digital immigrants" are used to symbolize, respectively, today's students' intimacy and the educators' unfamiliarity with technology.
E "Digital natives" refers to both students and educators who make good use of technology, while "digital immigrants" refers only to students who still need to learn to use computers.