Final answer:
The technique of drying and styling hair with a hand-held dryer and various tools is called Airforming. This differs from perms, flat ironing, or backcombing, each of which uses different methods to style hair. The correct option is B.
Step-by-step explanation:
The technique of drying and or designing hair by using a hand-held dryer while simultaneously using your fingers and a variety of tools is known as B) Airforming. This process involves using tools such as brushes and combs in addition to the heat and airflow from the dryer to create the desired style.
Unlike perms that can be achieved using thermal or chemical processes or flat ironing which straightens hair using heated plates, airforming is about shaping the hair while drying it. Blowout is a specific type of airforming style that results in a smooth and sleek look, while backcombing is a technique used to create volume by combing the hair against its natural growth direction.