What Is True About the File /Etc/localtime

What is true about the file /etc/localtime ?

A) It is a plain text file containing a string such as Europe/Berlin It is a plain text file containing a string such as Europe/Berlin
B) It is created and maintained by the NTP service based on the location of the system's IP address.
C) It is a symlink to /sys/device/clock/ltime and always contains the current local time. It is a symlink to /sys/device/clock/ltime and always contains the current local time.
D) After changing this file, newtzconfig has to be run to make the changes effective. After changing this file, newtzconfig has to be run to make the changes effective.
E) It is either a symlink to or a copy of a timezone information file such as /usr/share/zoneinfo/Europe/Berlin . It is either a symlink to or a copy of a timezone information file such as /usr/share/zoneinfo/Europe/Berlin .