If you deleted a that’s part of an existing relationship, Acces might A. issue a warning.
B. make a backup copy of the object.
C. duplicate the relationship
D. delete the relationship.

This question is about Microsoft Access please explain. :)

D. delete the relationship.

or

B. make a backup copy of the object

Explanation:

Tables in a data model can have multiple relationships. This is likely to be the case if you purposely create additional relationships between tables that are already related, or if you import tables that already have multiple relationships defined in the original data source.

While multiple relationships exist, only a single relationship serves as the active, current relationship that provides the data navigation and calculation path. Any additional relationships between a pair of tables are considered inactive.

You can delete existing relationships between tables if you’re sure they are not needed, but be aware that this can cause errors in PivotTables or in formulas that reference these tables. PivotTable results can change in unexpected ways after a relationship is deleted or deactivated.

Start in Excel

Click Data > Relationships.

In the Manage Relationships dialog box, select one relationship from the list.

Click Delete.

In the warning dialog box, verify that you want to delete the relationship, and then click OK.

In the Manage Relationships dialog box, click Close.

Start in Power Pivot

Click Home > Diagram View.

Right-click a relationship line that connects two tables and then click Delete. To select multiple relationships, hold down CTRL while you click each relationship.

In the warning dialog box, verify that you want to delete the relationship, and then click OK.

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