B. Add a background image or text behind the main content
C. Add a header or footer
D. Protect the document from editing
Answer: Option B
Solution (By JKSSB Mock Tests)
A watermark is a faded background image or text (like 'Draft' or 'Confidential') that appears behind the document text. It does not protect, border, or header/footer.
Explanation:
Queries are used to retrieve, update, delete, or analyze data from tables based on specified criteria. They do not store data permanently (except make-table queries).
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