Question

Consider the following statement about World Happiness Report : 1. Happiness rankings are based on UNDP Reports. 2. Countries are ranked according to their self-assessed life evaluations. 3. Evaluations is based on their answers to the single-item Cantril ladder life-evaluation question. Which of the above statement is/are not correct?

A 1 only
B 2 only
C 1 and 2 both
D 2 and 3 both
E 3 only
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