Which of the following is correct with respect to the size of the storage units?
1
Terabyte < Petabyte < Exabyte < Zettabyte
2
Petabyte < Exabyte < Zettabyte < Terabyte
3
Exabyte < Zettabyte < Terabyte < Petabyte
4
Zettabyte < Exabyte < Petabyte < Terabyte
5
None of these