Which of the following is NOT a version of the C-SSRS?

The correct answer is C, as the term "Snapshot" does not refer to a recognized version of the Columbia-Suicide Severity Rating Scale (C-SSRS). The C-SSRS is a widely used tool designed to assess suicidal ideation and behaviors, and it includes distinct versions, each serving a specific purpose in evaluating suicide risk.

The Full version is comprehensive and covers a wide range of suicidal ideation and behavior, making it suitable for thorough assessments in clinical settings. The Screener is a shorter version that quickly identifies individuals at risk and is often used in screening situations for a quicker evaluation. The Lifetime version assesses suicidal thoughts and behaviors over a person’s lifetime, providing a historical perspective on their experiences related to suicidality.

Since "Snapshot" is not one of the standard classifications of the C-SSRS, it is the correct choice as it does not represent an official version of the scale.