Bobby is investigating how an authorized database user is gaining access to information outside his normal clearance level. Bobby believes that the user is making use of a type of function that summarizes data. What term describes this type of function

Aggregate Function .

Explanation:

The aggregate function returns the single value of the entire column of the database management system. The Aggregate Function is used in the SELECT statement and the GROUP BY clause.  

The sum(),avg(), etc are some examples of Aggregate Function in the database with the help of aggregate function bobby gains the access to information above the usual clearance point. and summarizes the data.

a.clothing is the correct answer