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
Baby with diarrhoea presents with restlessness, irritability sunken eyes and baby is thirsty and drinks eagerly. What is the diagnosis of this child? 
Select and explain. 
A. No dehydration, B. Some dehydration, C. Severe dehydration, D. Very Severe dehydration
B: Some dehydration
Answer: B: Some dehydration 
Explanation: Some dehydration

Child is restless, irritable.
Sunken eyes
Absent tears
Child is thirsty and drinks eagerly.
Skin pinch goes back slowly.