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: Social & Preventive Medicine
A child of 1 year presents with muscle wasting, loss of subcutaneous fat with no signs of edema and weight below 60% of WHO standard. The mother gives history of not giving enough proteins and other nutrients to the child after six months of age. The likely diagnosis is 
Select and explain. 
A. Kwashiorkor, B. Marasmus, C. Marasmus & kwashiorkor, D. Under nutrition
B: Marasmus
Answer: B: Marasmus 
Explanation: None