What is the correct way to write sentence 11? (11) Most teens are absorbed with their own daily activities, they rarely think about the fact that human civilization has been around for a long time.

A. Most teens are absorbed with their own daily activities. Rarely thinking about the fact
that human civilization has been around for a long time.
B. Most teens are absorbed with their own daily activities and rarely think about human
civilization. Which has been around for a long time.
C. Most teens are absorbed with their own daily activities and rarely think about this fact,
human civilization has been around for a long time.
D. Most teens are absorbed with their own daily activities and rarely think about the fact
that human civilization has been around for a long time.​