B Mouse because you can point, drag and click actions
        
             
        
        
        
C: Backlight, hopes this helps
 
        
             
        
        
        
I think it is.. the low side handwheel is made of blue plastic or occasionally has a blue decal in its center  then the high side handwheel is made of red plastic or occasionally has a red decal gauges used with a refrigeration gauge manifold are either analog which resemble other pressure gauges or perhaps digital.... i hope this helps :)
        
             
        
        
        
Answer:
The correct answer to the following question is option e.) Usenet.
Explanation:
Usenet - it  is a collection of the user-submitted messages or notes on the various subject that posted to the servers on the worldwide network. Each of the subject collection of notes is known as newsgroups. There are thousands of the newsgroups which is possible for us to form the new one.
It works like the decentralized computer network which allows us to download our required files. We can also download and access the binary files along with the text post.
 
        
             
        
        
        
Answer:
All of the above. 
Explanation:
API is an acronym for application programming interface and it can be defined as a software intermediary (computing interface) comprising of sets of codes, tools and protocols that helps software applications and the computer to communicate with each other, as well enable the exchange of data. Some examples of popular APIs are Go-ogle, Face-book, Twitter etc. 
The main characteristics and functions of an application programming interface (API) includes;
I. Allows different devices to connect with each other. 
II. Allows for Interactivity between devices and software. 
III. Messenger program that takes requests and delivers the response back to the user. 
IV. Allows the creation of applications that access the features or data of an operating system, application, or other services. 
V. Specifies how software components should interact. 
VI. Used when programming graphical user interface (GUI) components