A-relationships focus on query filters while relational tables focus on filters only.
B- that there really is no difference.
C- a relational table defines a logical association between two relationships.
D-relational table is a two-dimensional structure while the relationship defines an association between the tables.
A relational table is a two dimensional structure while the relationship defines an association between tables. The relational table is simple a database table, but it has an associated relationship that limits input to link it to other data. Any table in a database can be made relational by adding relationships.
I hope this helps.