True a pdf is a file format that provides a electronic image of a document and it can be viewed, printed and electronically transmitted.
A.Information on social networking sites can give most or all digits of a person’s social security number.
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By looking at your code, it seems like you're trying to let the user enter positive numbers until the user enters a negative number. To achieve this, you need to indent int(input("Enter a number, negative to stop")) inside the loop.
The second answer choice is correct.
