This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: obstetrics,pediatrics and geriatrics, Subject name: Social & Preventive Medicine
Desk for student is ? 
Select and explain. 
A. Minus desk, B. Plus desk, C. Zero desk, D. All the desks
A: Minus desk
Answer: A: Minus desk 
Explanation: parks textbook pf preventive and social medicine 23rd edition *furniture should suit the age group of students .it is desirable to provide single desks and chairs .desks should be of minus type.chairs should be provide with propeer bach rests,with facilities for desk-work.