A sentence has been given in Active/Passive Voice. Out of the four given alternatives, select the one which best expresses the same sentence inPassive/Active Voice.
Foreign keys are the columns of a table that points to the primary key of another table. They act as a cross-reference between tables.
In detail : A Foreign key is a field (or collection of fields) in one table that uniquely identifies a row of another table or the same table. In simpler words, the foreign key is defined in a second table, but it refers to the primary key or a unique key in the first table.
The Cathedral of Notre Dame is located in paris(France) . It was one of the earliest French Cathedrals to be built in the Gothic style. It was built between A.D 1163 and AD 1270. About the 12th century, a new style- the Gothic -was developed in France.