**Core Concept**
A Wolf's graft, also known as a full-thickness skin graft (FTSG), is a type of skin graft that includes the entire thickness of the skin, including the epidermis, dermis, and hypodermis. This graft is typically used for covering large defects with minimal donor site morbidity.

**Why the Correct Answer is Right**
A Wolf's graft is harvested from a donor site and then transplanted onto the recipient site, allowing for the replacement of damaged or missing skin tissue. The epidermal cells in the graft begin to repopulate the recipient site, while the dermal layer provides structural support and promotes wound healing. This type of graft is particularly useful for covering large defects, such as those resulting from burns or trauma.

**Why Each Wrong Option is Incorrect**
**Option A:** A split-thickness skin graft (STSG) is a type of skin graft that includes only the epidermis and a portion of the dermis, making it thinner than a Wolf's graft.
**Option B:** A composite graft includes skin and underlying tissue, such as muscle or bone, making it thicker and more complex than a Wolf's graft.
**Option C:** A pedicle graft is a type of skin graft that remains attached to the donor site by a blood vessel, making it different from a Wolf's graft which is completely detached.

**Clinical Pearl / High-Yield Fact**
When considering a skin graft, it's essential to assess the size and depth of the wound, as well as the availability of donor tissue, to determine the most suitable type of graft.

**Correct Answer: A. Full-thickness skin graft.**