What information does the help topic command provide?

A.
router’s version and serial number to help open a case with JTAC

B.
software documentation describing features and configuration tasks within JUNOS

C.
a brief description of commands and their default values

D.
a verification of the current configuration on the router

Explanation:
The help topic command displays usage guidelines for the statement based on information that appears in the
Junos OS configuration guides.Incorrect Answers:
C: This is done by the help reference command, which The displays summary information about the statement
based on the summary descriptions that appear in the Junos OS configuration guides.
http://www.juniper.net/documentation/en_US/junos16.1/topics/concept/junos-cli-online-helpaccess-overview.html