Answer: Insertion steganography
Explanation: Insertion steganography is the way of encrypting the data with the help of a regular files and message. It is encrypted by the ordinary files because the identification of files can be neglected. This process is carried out just for the protection purpose in extra form and gets decrypted in the destination port .It has the working based on the replacement of the bits in a file .
Answer: B. PDF
Explanation:
Portable Document Format (PDF) is such an important document that it is considered the international standard for information and document exchange. It is used for letters, resumes and even electronic contracts.
PDF was developed by Adobe to make it independent of the device or application it is being viewed on and combines layers of information into one layer thereby making it a flat document.
They where high ranking aristocrats in Russia during the 16th century. They where all executed.
Budget and time is the answer