All of the Following Are Downsides to Data Mining Except

All of the following are downsides to data mining except which?

A) Some of the information found on the Internet is factually incorrect.
B) Personal, private data on most Americans are available on the Internet.
C) It is easy for almost anyone to find out your personal information through both online and offline sources.
D) You can use the Internet to find out which companies are obtaining your personal data.
E) Many firms obtain personal, private data by placing cookies on a person's computer or use tracking apps to forward location information from a user's mobile phone.