The equivalent of film speed in a digital camera is going to be sensitivity. This will make the correct answer B.
Answer:
Spyware
Spam is just unwanted soliciation, spoofing is making links appear as something else, pharming is creating a fake website for victims to use.
There is a extension from google chrome webstore that allows to take a screnshot
A computer network is a group of computers that use a set of common communication protocols over digital interconnections for the purpose of sharing resources located on or provided by the network nodes.