Who of the following is within the group most likely to have the lowest rate of bipolar disorder?

a. Adrien, from Germany, who eats lots of boiled vegetables such as cabbage
b. Daniel, from Korea, whose family has always eaten a lot of fish
c. Jeff, a Canadian, who have been taking omega-3 supplements for over two years
d. Roberto, from Italy, who enjoys tomatoes in any form

ANSWER:

b. Daniel, from Korea, whose family has always eaten a lot of fish