which type of join does the visual shown below represent? inner join left join right join centre join

Brief Explanations:

An inner - join in database operations returns only the rows where there is a match in both tables being joined. The Venn - diagram visual shows the overlapping area (blue part) which represents the common elements between two sets, similar to how an inner - join returns the common rows from two tables. There is no 'Centre Join' in standard database join operations. A left - join returns all rows from the left table and the matching rows from the right table, and a right - join returns all rows from the right table and the matching rows from the left table.

Answer:

A. Inner Join