Which of the following commands will accomplish this?

A technician needs to extract the entire archive ‘backup.tar.bz2’. Which of the following commands will accomplish this?

A.
tar xZa backup.tar.bz2

B.
tar x –bz2 backup.tar.bz2

C.
tar xjf backup.tar.bz2

D.
tar xbf backup.tar.bz2