A biopsy of ischemic tissue reveals cellular swelling, loss of microvilli, and blebbing of the plasma membrane, but intact nuclei. These findings are characteristic of which stage of cellular injury?

✓ Correct Answer: Option D

Cellular swelling, loss of microvilli, and plasma membrane blebbing are classic morphological hallmarks of reversible cell injury. The nucleus remains intact during this phase, indicating that the cell can still recover if the injurious stimulus is removed.