Final answer:
Hydrocolloid dressings promote healing in stage 2 pressure injuries by creating a moist wound bed.
Step-by-step explanation:
The correct answer is Hydrocolloid dressings. Hydrocolloid dressings create a moist wound bed, which promotes healing in stage 2 pressure injuries. These dressings contain gel-forming agents that interact with the wound exudate to form a gel-like substance, providing a moist environment for wound healing. The gel also helps to maintain the appropriate moisture balance in the wound, which is crucial for optimal healing.