John travels a lot and he needs to access his documents and services on the go. which of these technologies allows his to access documents and software while on the
move?
cloud computing
grid computing
mobile computing
green computing
virtualization

Cloud computing allow the user to access software or any document from the remote place.

Explanation:

Let us understand what does the word cloud actually means. In simple terms, we get rain from cloud, but we don’t know actually which cloud burst to give rain.

In a similar way, the cloud computing is the concept of storing files in multiple servers and multiple location and it provide access when the client needs the source.

Cloud computing enable user to work on software online or to download document or edit / create documents online. Certain services are free and few other are paid.

a software system that is used for viewing and creating hypertext is a hypertext system.

i hope this .

the answer is d underlined.