Websites are considered 'time capsules' because...

A they reveal what the adolescents of this generation are like and what they value. B they will expose that teenagers from the early 21st century could not use the web for research. C the children will be adults in the next century and their past habits will not interest historians. D the content of the web pages has lasted for many centuries, so it is correct to use the expression. E the early 21st century kids research about journeys to past eras and learn historical events in general.