Final answer:
The smooth infusion\u2122 style-prep smoother\u2122 is intended to smooth hair, protect hair from heat damage, and provide a styling hold. It is a multipurpose hair product that one can use to achieve sleek and frizz-free hair while also ensuring protection against heat and aiding in the longevity of hairstyles.
Step-by-step explanation:
The main purpose of smooth infusion\u2122 style-prep smoother\u2122 is D. All of the above: it is designed to smooth hair, protect hair from heat damage, and provide hold for styling. This multi-benefit hair product is formulated to create a sleek look by smoothing the hair cuticle, which in turn helps in managing frizz and flyaways. Moreover, it often contains ingredients that help shield the hair from the high temperatures of styling tools such as flat irons and blow dryers. Lastly, it provides a light hold that can help styling efforts last longer throughout the day.