Which one of the following attribute can be taken as a primary key ? Options: A . &nbspName B . &nbspStreet C . &nbspId D . &nbspDepartment

Which one of the following attribute can be taken as a primary key ?

Question - Which one of the following attribute can be taken as a primary key ?

Options:

A . Name

B . Street

C . Id

D . Department

Answer: Option C

IdThe attributes name , street and department can repeat for some tuples.But the id attribute has to be unique .So it forms a primary key.

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