Read the passage given below carefully and answer the questions that follow :-

Major Chandra, an infantry soldier, was posted in the border area with his unit. One day, an informer gave a message that terrorists have entered in a school and are threating to blow it, if some of their terrorist prisoners are not released. The major entered the school premises along with other soldiers, but was shocked to see the terrorists armed with the latest weapons. Soon the firing started, as the terrorists had an advantageous position so they immediately shot down a few soldiers without caring for their life. Major Chandra entered the school and started firing which led to killing of the terrorists and he got badly injured. Though the Major has recovered, still he gets flashback and recurring nightmares.

Identify the official manual that is currently in use to classify various kinds of psychological disorders:

DSM V

The correct answer is Option (1) → DSM V

The American Psychiatric Association (APA) has published an official manual describing and classifying various kinds of psychological disorders. The current version of it, the Diagnostic and Statistical Manual of Mental Disorders, 5th Edition (DSM-5), presents discrete clinical criteria which indicate the presence or absence of disorders.