Suicide in the United States is:

A. While social factors can influence depression, they don't primarily focus on learning as the root cause.
B. Behavioral theories suggest that depression is learned through conditioning and reinforcement. This includes concepts like learned helplessness and operant conditioning.
C. These theories focus on physiological factors like neurotransmitters and genetics as the primary causes of depression.
D. These theories emphasize unconscious conflicts and early childhood experiences as the basis for depression.

A. While adolescents may have a high rate of suicide attempts, their attempts are not typically as fatal as those in older adults. This is often due to less lethal methods being used, lower intent, and less access to means. Suicide attempts among adolescents tend to have a lower success rate compared to older adults.
B. Young adults also have a notable rate of suicide attempts, but the lethality of these attempts is generally lower compared to older adults. The methods used by young adults may not be as immediately fatal or decisive as those used by older adults.
C. Older adults have a higher success rate in suicide attempts, with a significant portion of attempts resulting in death. One reason for this is that older adults are more likely to use highly lethal methods, such as firearms or overdoses of medication. Additionally, older adults may have a more determined intent to die, and their methods are often more effective at causing death.
D. Middle-aged adults do have a significant rate of suicide attempts, and their attempts are more likely to be fatal than those of adolescents or young adults. However, the success rate is still generally lower than that of older adults.