The answer that fits the blank is XOR or Exclusive OR. Exclusive OR is a logical operation wherein it demonstrates the logic presented by "either/or". This means that if the output given is true, either of the inputs, but never both, should also be true.
Answer:
→A desktop computer is designed mainly as a single user computer to solve the tasks of the end user.
→ A laptop is a personal computer with a touchpad used to move a cursor on the screen.
Explanation:

There are no options.
It would, however, look larger.
Answer:
Option C i.e., Interoperability is the correct option
Explanation:
Interoperability performs for computers or its components for the purpose to communicate and it is important to improve the development of the Internet of Things. It performs the communication as well as share their services between computer or its components.
It also contains challenges occurred at the time of developing and implementing the protocols by which they communicate.