Which of the following can be used to write a high level program source code?

Symptoms of computer virus attack include:

I. improved processing speeds; Il. drive light coming up without a parent reason; Ill. unexplainable printer activity; IV. the disappearance or strange files appearance on screen A. l, Il and Ill only B. I, Ill and IV only C. I, IIl and IV only D. I, II, Ill and IV...

Copyright warnings! Do not copy.