This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Dystrophies and Degenerations, Subject name: Ophthalmology
Fundus in retinitis Pigmentosa is - 
Select and explain. 
A. White spots with red disc, B. Jet- black spots with pale-waxy disc, C. No pigmentation, D. Dilatation of arterioles
B: Jet- black spots with pale-waxy disc
Answer: B: Jet- black spots with pale-waxy disc 
Explanation: Ans. is 'b' i.e., Jet- black spots with pale-waxy disc Examination findings in retinitis pigmentosao Ophthalmoscopic findings are characteristic and includeRetinal pigmentary changes (Bone spicule intraneural retinal pigmentation) : - Retina studded with small, jet-black spots resembling bone corpuscles with a spidery outline. These pigmentary changes are typically perivascular and retinal veins (never arteries) have a sheath of pigment for part of their course. These changes affect equatorial region initially sparing the posterior pole and periphery. Later in the course of disease whole retina is involved.Attenuated and thread like retinal arterioles and veins.Pale and waxy optic disc (consecutive optic atrophy).Thinning and atrophy of retinal pigment epithelium (RPE) in mid and far peripheral retina with relative sparing of RPE at macula.o Electroretinogram (ERG) and particularly the electro-oculogram (EOG) are markedly subnormal.