Which of the Following Is True of the Differences Between

Which of the following is true of the differences between worms and viruses?

A) Worms attach themselves to the operating system of a computer, whereas viruses do not.
B) Viruses attach themselves to the operating system of a computer, whereas worms do not.
C) The software programs designed to detect viruses are reactive, whereas those designed to detect worms are proactive.
D) The software programs designed to detect worms are reactive, whereas those designed to detect viruses are proactive.