Which does plug-and-play refer to?

a.
the ability to use a computer without it being plugged in (like a laptop)

b.
the ability to use one device such as a monitor on more than one computer

c.
the ability for the operating system to automatically detect and configure a device (like a camera)

How might the success of your campaign be affected if you haven’t carefully completed all field data or if you accidentally insert the wrong merge field in the document?

Scientists have changed the model of the atom as they have gathered new evidence. one of the atomic models is shown below. what experimental evidence led to the development of this atomic model from the one before it? a few of the positive particles aimed at a gold foil seemed to bounce back. the colors of light emitted from heated atoms had very specific energies. experiments with water vapor showed that elements combine in specific proportions. cathode rays were bent in the same way whenever a magnet was brought near them.

Can someone work out the answer as it comes up in one of my computer science exams and i don't understand the cryptovariables