All of the Following Statements About Mobile Apps Are True

Multiple Choice

All of the following statements about mobile apps are true except:

A) mobile apps have usurped television as the most popular entertainment medium.
B) iOS apps are cross-platform, open-source applications.
C) over 200 billion apps have been downloaded from the Apple App Store.
D) almost all the top 100 brands have a presence in at least one of the major app stores.