Elaine Is a Software Developer

Multiple Choice

Elaine is a software developer.She is currently working on an app that allows the user to hold their phone camera up to address of any building in New York.Once the address is in the viewfinder, the user can tap on the screen, which will bring up interesting historical pictures of the building and also information on notable people who have lived or worked there in the past.What is Elaine's app utilising?

A) The Internet of Things
B) Augmented reality
C) Weber's law
D) Subliminal perception