i have added world database

2. (World database) All questions below are related to the following query Select co.name, max (ci.population) AS "Top City Population" From Country co Join City ci On (co.code ci.countrycode) Group by coname; a. Is there a selection operation involved? b. Is there a projection operation involved? c. Is a join operation involved? What are these tables? d. Is column alias used? How? e. Is table alias used? How? f. Is any aggregation function used? If so, which one? g. Is Group By used? How? h. How many columns are there in the output? The column headers are