Explanation

In the International System of Units (SI), memory storage units follow a metric progression, where each unit is 1000 times larger than the previous one. The largest unit mentioned in the given options is Yottabyte (YB), which is equal to 1000 Zettabytes (ZB). Here’s how the units progress: Kilobyte (KB) = 1000 Bytes Megabyte (MB) = 1000 Kilobytes Gigabyte (GB) = 1000 Megabytes Terabyte (TB) = 1000 Gigabytes Petabyte (PB) = 1000 Terabytes Exabyte (EB) = 1000 Petabytes Zettabyte (ZB) = 1000 Exabytes Yottabyte (YB) = 1000 Zettabytes Yottabyte is the largest SI unit of memory storage among the options, and it equals 1000 Zettabytes.