Answer;
21.Displays the name of or changes the current directory.
a. CD
b. MD
c. RD
d. SC
Displays the name of the current directory or changes the current directory. If used with only a drive letter (for example, cd
C: ), cd displays the names of the current directory in the specified drive. If used without parameters, cd displays the current drive and directory.
[tex] \bold \color{red} \: Keep It Up The Good Work[/tex]
