The correct answer is d. Non-Hispanic blacks
According to the to research done by National Institute of Mental Health of US in 2004, the suicide rate in the ethnic or racial group was lower for people ages 65 or older the among non-Hispanic Blacks — 5.3 per 100,000 while the overall picture looks as follow:
Highest rates:
Non-Hispanic Whites — 12.9 per 100,000
American Indian and Alaska Natives — 12.4 per 100,000
Lowest rates:
Non-Hispanic Blacks — 5.3 per 100,000
Asian and Pacific Islanders — 5.8 per 100,000
Hispanics — 5.9 per 100,000
