Look at the timeline.

a timeline. in 1867, the typewriter was invented. in 1876, the telephone was invented. in 1972, the first email program was created. in 1977, the personal computer was created.

what does the timeline show about the creation of e-mail?

e-mail was created before personal computers.
e-mail was created after personal computers.
e-mail was created more than one hundred years after the telephone.
e-mail was created less than one hundred years after the typewriter.