The JGA (Juxta Glomerular Apparatus) is a special sensitive region formed by cellular modifications in related to the same nephron.

1. A. Proximal convoluted tubule and efferent renal arteriole
2. B. Distal convoluted tubule and efferent renal arteriole
3. C. Distal convoluted tubule and afferent renal arteriole
4. D. Proximal convoluted tubule and afferent renal arteriole

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