In Bourne shell, which file sets the Unix environment for the user when the logs into his HOME directory ?

A. grep
B. mail
C. mesg
D. write

A. cut sales empl.lst
B. /sales > empl.lst
C. grep sales empl.lst
D. cat | /sales > empl.lst

A. comp
B. cmp
C. do
D. ccp

A. print
B. prn
C. pg
D. lp

A. A
B. a
C. i
D. I

A. dir
B. prompt $p$g
C. pwd
D. path