Which of the following is not an advantage of wireless devices to users? select one: a. they have sufficient computing power to perform productive tasks. b. they are small enough to easily carry or wear. c. they can communicate wirelessly with the internet and other devices. d. all of the above are advantages.

Option D

Explanation: Wireless devices of communication such as cell phones are the most commonly used medium of communication in 21st century. Using such devices one can exchange information from any place at any time.

However it does have some issues like information could be copied from such devices. As the given case, does not have it in option.

Therefore, we can conclude that the correct option is D.

subject and verb are present but it is not a complete thought

Explanation:

there are no missing verbs(received)or subject(paycheck)but It is not a complete sentence(doesn't describe what you do with the paycheck)