Comparing storage capacities requires understanding the magnitude of each unit. The hierarchy from smallest to largest is megabytes (MB), gigabytes (GB), terabytes (TB), and then petabytes (PB). 1 PB (petabyte) = 1,000 TB (terabytes) 100 TB = 100 terabytes 9,000 GB = 9 terabytes 9,900 MB = 0.0099 terabytes Therefore, 1 petabyte (PB) is significantly larger than the other options listed.