Primary key is A. Uniquely identifies each record B. Cannot be repeated C. AutoNumber is example of Primary key D. All of the above

Uniquely identifies each record
Cannot be repeated
AutoNumber is example of Primary key
All of the above

The correct answer is D. All of the above.

A primary key is a column or combination of columns in a table that uniquely identifies each row in the table. It cannot contain duplicate values. AutoNumber is a data type that automatically generates a unique number for each new record in a table.

Here are some additional details about each option:

  • Option A: A primary key uniquely identifies each record in a table. This means that no two records in a table can have the same primary key value.
  • Option B: A primary key cannot be repeated. This means that a primary key value cannot be used for more than one record in a table.
  • Option C: AutoNumber is an example of a primary key. AutoNumber is a data type that automatically generates a unique number for each new record in a table. This makes AutoNumber a good choice for a primary key.

I hope this helps!