Final answer:
The three classifications of steganography are Technical steganography, Linguistic steganography, and Digital steganography. These involve hiding information within technological devices, within text, and within digital media respectively.
Step-by-step explanation:
The classifications of steganography typically involve methods used to hide information within different types of media. The three classifications from the options provided are:
- Digital steganography: This involves hiding information within digital media, such as images, audio files, video files, or even protocol behaviors in network traffic.
- Linguistic steganography: This entails hiding information within text, using methods like invisible inks or subtle changes to the text that are not noticeable at first glance.
- Technical steganography: This involves the use of technological methods to conceal messages, which can include physical devices like microdots or specially designed hardware.
Therefore, options b) Technical steganography, d) Linguistic steganography, and e) Digital steganography are the correct classifications of steganography.