Final answer:
Option B) and D). To hydrate the skin and reduce fine lines, the esthetician should use sheet and gel masks.
Step-by-step explanation:
Sheet masks and gel masks are what Charlene's esthetician should use to hydrate the skin and minimize fine lines. Gel masks are hydrating and can help smooth out fine lines; sheet masks are soaked in an essence that can deeply moisturize the skin. The cooling and calming effects of both masks are felt by the skin.
Since clay masks are more suited for oily or acne-prone skin types and might not offer enough hydration, they are not the greatest option. Since a peel-off mask is more exfoliating than the other masks and might not offer as much hydration, it might not be the best option either.