User’s Primary Group id is listed in which file, at the time of creation of the user (On a standard Unix system)

User’s Primary Group id is listed in which file, at the time of crea

1.	User’s Primary Group id is listed in which file, at the time of creation of the user (On a standard Unix system)
A.	/etc/passwd
B.	/etc/groups
C.	/etc/login
D.	/etc/profile
Answer» B. /etc/groups