Comment upon the hormonal regulation of selective reabsorption.

Explanation

### Step-by-Step Text Solution:

1. **Introduction to Hormonal Regulation in Selective Reabsorption**:
- Selective reabsorption is a crucial process that occurs in the nephron, the functional unit of the kidney, during urine formation. Hormones play a significant role in regulating this process.

2. **Role of Antidiuretic Hormone (ADH)**:
- The first hormone involved is the Antidiuretic Hormone (ADH), also known as vasopressin.
- ADH primarily acts on the distal convoluted tubule (DCT) and the collecting duct of the nephron.
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