Answer:
D) Users can connect all their different devices to access apps and interact with others from any location.
Explanation:
Smart phones bring the users and connect people in one-touch. Smart phones are really essential especially in business where cashless transactions are involved, people get more contact using the social media, online is more accessible than travel.
Nowadays there is no big company without having own applications, no business wait for cash payment, even the small pet shop will have swiping machines.
The benefits of smart devices in terms of users is that it make the customers to get connection from any location and any time.