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Which of the following statement is true?

A. Foreign key fields dont allow duplicate values

B. In primary key field you can enter duplicate value

C. In an indexed field you may or may not enter duplicate value depending upon setting

D. All statements are true

Please do not use chat terms. Example: avoid using "grt" instead of "great".

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  16. This option allows you to build a new table by entering data directly into the datasheet.
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  18. A database object in MS Access that stores a question about the data in database?
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  21. A small button with three dots usually displayed at the right of field properties box
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