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: Pediatrics
A 36-month-old male child appears chronically ill. He has had a succession of respiratory infections in the past 6-months. The child is underdeveloped, only 50% of ideal body weight, and exhibits marked muscle wasting. Laboratory findings include a normal serum albumin but decreased hemoglobin. These findings are most characteristic for which of the following? 
Select and explain. 
A. Marasmus, B. Leukemia, C. Folate Deficiency, D. Kwashiorkor
A: Marasmus
Answer: A: Marasmus 
Explanation: Marasmus is characterized by gross muscle wasting and subcutaneous tissue resulting in emaciation, marked stunting and no edema.