Which of the following BEST describes the Internet of Things$($IoT$)?$

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Part $1$

A$.$

The IoT is a social media site that allows consumers to buy and sell merchandise.

B$.$

The IoT is a data analytics technique to track sales made over the internet.

C$.$

The IoT refers to the ability for consumers to buy things over the internet.

D$.$

The IoT is a mobile shopping app.

E$.$

The IoT is a global environment where everything and everyone is digitally connected to everything and everyone else.