________ country topped the United Nations (UN) World Happiness Index ?

(a) Switzerland
(b) Denmark
(c) Iceland
(d) Finland

On top of the charts is Finland rated as high as 7.809 points for the third consecutive year with Denmark (7.646) and Switzerland (7.560) at the no 2 and 3 spots, respectively. Followed by Iceland (7.504) and Norway (7.488), completing the top five positions in the ranking.