Google, Facebook, Instagram, Snapchat, and many other of today's fastest-growing tech companies make money by selling attention. These companies provide a service -- search, social networking, or photo sharing -- at little or no cost to users. In exchange for their service, the companies \"charge\" you by making you look at ads. 3 One of the most valuable features of Instagram as an advertising platform is that Instagram (and its parent Facebook) can track almost everything you do on their platform as well as many behaviors outside of the platform, so long as the chain of events started on Instagram. For example, if you click on an Instagram ad for a particular product, there is a good chance Instagram can see whether that click resulted in a purchase. Read Instagram's Data Policy-'1. Use your own words to answer this question, if you copy-paste anything from the policy directly, make sure it is properly attributed and cited. a) Summarize the data they collect about the users (in the USA). b) Do they collect anything that surprises you? c) Why might this data be valuable to them? Be specific