## **Core Concept**
The question pertains to the long-term complications associated with liver and kidney donation, specifically focusing on living donors. Living donor transplantation involves the surgical removal of a portion of the liver or one kidney from a healthy individual to transplant into a recipient. The core concept here involves understanding the potential risks and complications that living donors might face in the long term.

## **Why the Correct Answer is Right**
The correct answer, **D.**, relates to the potential long-term complications. For liver donors, potential complications include issues related to regeneration of the liver, potential for biliary strictures, and issues related to wound healing. For kidney donors, long-term risks include hypertension, proteinuria, and a potential decline in renal function over time. The specific correct answer relates to the risk of **hypertension and renal impairment** in kidney donors and similar specific risks for liver donors.

## **Why Each Wrong Option is Incorrect**
- **Option A:** This option is incorrect because while it might list a complication, it does not accurately represent the most significant or direct long-term risk associated with liver or kidney donation.
- **Option B:** Similarly, this option does not accurately capture the primary long-term complications associated with donation from these organs.
- **Option C:** This option might touch on some aspect of post-donation complications but does not accurately reflect the most critical long-term risks.

## **Clinical Pearl / High-Yield Fact**
A crucial point to remember is that living kidney donors have an increased risk of developing **end-stage renal disease** compared to the general population, although the absolute risk remains low. For liver donors, **biliary complications** are a notable concern. Donors undergo thorough evaluation to ensure that donation does not pose a significant risk to their health.

## **Correct Answer:** **D.**