A PDF file preserves a document's layout and formatting and can be opened in several different applications

________ uses a password to create a unique algorithm used to translate the saved Excel workbook into a stream of uninterpretable characters that can only be translated back with that password

Fill in the blank(s) with correct word

A(n) __________ is used as an index to pinpoint a specific element within an array.

a. boolean value b. element c. argument d. subscript