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
Regarding educat. HDl rue went is: 
Select and explain. 
A. In gross enrolment, only secondary education is considered, not primary education, B. 1/3rd weightage is given to adult literacy, C. 2/3`dweightage is given to gross enrolmen, D. Country's achievement is computed on the basis of adult literacy
D: Country's achievement is computed on the basis of adult literacy
Answer: D: Country's achievement is computed on the basis of adult literacy 
Explanation: Ans. d. Country's achievement is computed on the basis of adult literacy The knowledge and education index of a country is computed on the basis of adult literacy rate and combined gross enrollment ratio."