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
Which of the following is not included in the calculation of Human Povey Index-1 (HPI-1)? 
Select and explain. 
A. Adult literacy rate, B. % of children underweight for age, C. % of population not using an improved water source, D. Combined gross enrolment ratio
D: Combined gross enrolment ratio
Answer: D: Combined gross enrolment ratio 
Explanation: HPI-1 measures deprivation in 3 basic dimensions Probability of bih not surviving to age 40 Adult literacy rate % of children underweight for age % of population not using an improved water source Ref: Park, 21st Edition, Page 17.