I've never seen that third syntax. If it's legit, it probably does the same as I and II, which are the same.
Restart the whole computer??
Answer:
Basically it creates a unique identifier for each row in your table and that can help you link your table to other tables using primary key as link
Explanation:
"Primary key allows you to create a unique identifier for each row in your table. It is important because it helps you link your table to other tables (relationships) using primary key as links."
The __Show/Hide Insert___ feature will allow users to view non printing formatting marks to aid in editing a document.
The answer is D. Show/Hide Insert
Let me know if this is correct
George Washington was the first president of the United States that is your answer