Which of the following is largest size of storage?

Terabyte
Petabyte
Gigabyte
Kilobyte

The correct answer is (b) Petabyte.

A petabyte is a unit of information or computer storage equal to 1,024 terabytes or 1,048,576 gigabytes. It is abbreviated as PB.

A terabyte is a unit of information or computer storage equal to 1,024 gigabytes or 1,048,576 megabytes. It is abbreviated as TB.

A gigabyte is a unit of information or computer storage equal to 1,024 megabytes or 1,048,576 kilobytes. It is abbreviated as GB.

A kilobyte is a unit of information or computer storage equal to 1,024 bytes. It is abbreviated as KB.

Therefore, a petabyte is the largest unit of storage among the given options.