X: Database, Table, Index, Document, Field
y: Database, Collection, Index, Row, Column
Option 1:
x: Record, Table, Indicator, Document, Attribute
y: Database, Collection, Index, Row, Column
Option 2:
x: Datastore, Sheet, Key, Document, Attribute
y: Database, Collection, Index, Record, Field
Option 3:
x: Database, Spreadsheet, Key, Record, Attribute
y: Database, Set, Index, Row, Column
Option 4 (Correct):
x: Database, Table, Index, Document, Field
y: Database, Collection, Index, Row, Column