Final answer:
The IPSW file contains software update data for iOS devices.
Step-by-step explanation:
The correct answer is c) IPSW file.
IPSW stands for iPhone Software. It is a firmware file format used by Apple to deliver software updates to iOS devices such as iPhones, iPads, and iPods. These files contain the operating system, system files, settings, and other data necessary for the update.
For example, when a new version of iOS is released, Apple distributes the update as an IPSW file. Users can then download the IPSW file and use iTunes or Finder on Mac to install the update on their device. The IPSW file is loaded onto the device, and the software update is applied.