What distinguishes a "smart" device?

What distinguishes a "smart" device?
A . It can perform multiple data functions simultaneously.
B . It is programmable by a user without specialized training.
C . It can reapply access controls stored in its internal memory.
D . It augments its intelligence with information from the internet.

Answer: D

Explanation:

Reference: https://towardsdatascience.com/what-is-a-smart-device-the-key-concept-of-the-internet-of-things-52da69f6f91b