the user hides the information in image files of different formats, such as .PNG, .JPG, and .BMP.

• A. Linguistic Steganography
• B. Image Steganography
• C. Semagrams
• D. Covered Ciphers

Answer: (B)

Hiding information inside image files is about image steganography. The idea is to conceal a payload within the image data so the image looks normal to the eye while carrying hidden content. Different image formats offer opportunities to do this: BMPs are raw pixel data you can tweak with minimal visible change, PNGs allow subtle edits in pixel values or metadata, and JPEGs can hide data in the compressed frequency domain by adjusting DCT coefficients. This makes image-based steganography a natural fit for the scenario described.

Linguistic steganography would involve hiding data in text, not images, so it doesn’t fit. Semagrams isn’t a standard term used for this concept, and “covered ciphers” isn’t about embedding messages in image files specifically. The key idea here is that the medium is an image, so image steganography is the best fit.