• ⚠️ Note: This question was officially DROPPED by NTA/ICAR in the final answer key because none of the four options provided the correct histological order. Full marks were awarded to all candidates.
• Histological Layers of the Retina (from Inner/Vitreous to Outer/Choroid):

• Internal limiting membrane
• Nerve fiber layer (stratum opticum)
• Ganglion cell layer
• Inner plexiform layer
• Inner nuclear layer
  6. Outer plexiform layer
  7. Outer nuclear layer
  8. External limiting membrane
  9. (B) Layer of rods and cones (photoreceptors)
  10. (E) Retinal pigment epithelium (RPE)
  • Why NTA Dropped This Question: The correct chronological sequence of the given five layers from inner to outer is (A) $\to$ (C) $\to$ (D) $\to$ (B) $\to$ (E). Because this correct sequence was completely missing among all four examination options, NTA cancelled the question.

• Third Eyelid Epithelium in Swine: In the domestic pig, the conjunctival fold of the third eyelid (plica semilunaris / membrana nictitans), reinforced by hyaline/elastic cartilage, is lined by Transitional-type epithelium (or specialized stratified columnar epithelium containing abundant goblet cells) [Option 2].

Correct option: (2) transitional epithelium