This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
Which of the following is a feature of pernicious anaemia 
Select and explain. 
A. Glossitis, B. Tingling or numbness of extremities, C. Nervous system involvement in 75 % cases, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: In pernicious anaemia
Triad

Generalised weakness
Sore and painful tongue
Tingling or numbness of extremities


Nervous system involvement is present in 75% of cases
Degeneration of myelin sheath & peripheral nerves