Buying something you need not want is a good spending habbit :)
False
The databases' engines only search through content in that server, while web searches (like Google and DuckDuckGo) search across the entire web
The best answer is B: you can select the Save button to save it with the same file name if it has been previously saved
This answer depends on whether or not the document has initially been saved. If it has, then clicking the save button every time will save the file with its current name. Clicking the save as button each time will only let you save the file with a new name and an option to save it in a new location.
Software is also called a program or an application.