What Is the Basic Premise of the 'Internet of Things

What is the basic premise of the 'Internet of Things'?

A) Many devices, such as thermostats, refrigerators, cameras, smartphones, and security systems are all increasingly becoming interconnected within networks and the Internet
B) This concept explains how video games are being designed more toward multi-player gameplay rather than single-player
C) There is currently a shift in the commercial sector where companies are producing less physical products and producing more virtual products
D) This is a phenomenon where more products are being sold online through social media sites such as Facebook, Twitter, and Instagram