Final answer:
PP and PE flexible plastic piping materials can indeed be cold-flared using special tools, which is true.
Step-by-step explanation:
The question asks if PP (Polypropylene) and PE (Polyethylene) flexible plastic piping materials can be cold-flared with special tools. The answer to this question is A) True. Cold flaring is a process used to create a flared end on a pipe without the use of heat. Special cold-flaring tools are designed to work with these types of plastic pipes, enabling the creation of a flared connection that can be used to join sections of pipe or to connect pipes to fittings securely.