The answer is ".NET" (had to increase character count to let me post).
I don't really understand the meaning of the question. Can you reply and i'll try to help...
The difference between the new and open commands on the file menu are quite simple. The new command creates a brand new file, while the open command opens a file that already exists or has been created.
The correct answer that would best complete the given statement above would be the word VIRUSES. Here is the complete statement. Viruses can only grow and multiply within the cells of another living thing, but they can remain active on a surface for several hours or days.