Which command will print to standard out only the lines that do not begin with # (pound symbol) in
the file foobar?

A.
/bin/grep ^#foobar

B.
/bin/grep-v ^# foobar

C.
/bin/grep #$ foobar

D.
/bin/grep -v #$ foobar

Explanation:
grep stands for general regular processor, used to prints all lines where pattern matched. Achor
symbol used by String Processor tools like sed, awk and grep
^ line begins with
$ ldine ends with
\<word begins with
\>word end with
-v option in grep is non matching.