Consider the given table called Persons Perform NATURAL JOIN operation on both…

Explanation: A NATURAL JOIN combines rows from the two tables by matching values in all columns that have the same name in both tables. Here the common column is P_Id.

• Look at the P_Id values in Orders: 30, 30, 10, 10, 50.

• Look at the P_Id values in Persons: 10, 20, 30.

• Keep only rows where P_Id appears in both tables: the matching P_Id values are 30 and 10. Orders with P_Id 50 are dropped because there is no corresponding person.

• For P_Id = 30 there are two orders, so joining with the single Person row for P_Id = 30 produces two result rows. For P_Id = 10 there are two orders, so joining with the single Person row for P_Id = 10 produces two result rows.

Final result: Total number of tuples after the natural join = 4.