A metamorphic worm that generates its own morphed copies is sometimes said to "carry its own metamorphic engine" (see Problem 25). In some situations it might be possible to instead use a standalone...

A metamorphic worm that generates its own morphed copies is sometimes said to "carry its own metamorphic engine" (see Problem 25). In some situations it might be possible to instead use a standalone metamorphic generator (see Problem 24) to produce the metamorphic copies, in which case the worm would not need to carry its own metamorphic engine.

a. Which of these two types of metamorphic worms would be easier to implement and why?

b. Which of these two types of metamorphic worms would likely be easier to detect and why?