A) Sweden
B) Norway
C) Germany
D) Switzerland
Explanation: Switzerland, Sweden, the U.S., and the U.K., and the Republic of Korea are ranked among the top 5 respectively.
A) Sweden
B) Norway
C) Germany
D) Switzerland
Explanation: Switzerland, Sweden, the U.S., and the U.K., and the Republic of Korea are ranked among the top 5 respectively.