A. Denmark
B. Finland
C. Switzerland
D. Sweden
Explanation:
Finland has been ranked as the happiest country in the world for the 5th time in a row in the World Happiness Report 2022. The report is based on two key ideas, the first being happiness or life evaluation that is measured through opinion surveys and the second being identifying the key elements that determine well-being and the life evaluation across countries. Finland has been identified as the happiest country in the world, followed by Denmark at second position and Iceland at third position.