The correct answer is option 'B' - BIDR.

Explanation:
The BIDR (Buss-Durkee Hostility Inventory) is a psychological test that is used to measure aggression. It was developed by Arnold H. Buss and Mark Perry Durkee in 1957 and has been widely used in research and clinical settings.

The BIDR assesses both overt and covert aggression, which are two different forms of aggression. Overt aggression refers to aggressive behaviors that are directly observable, such as physical violence or verbal aggression. Covert aggression, on the other hand, refers to aggressive thoughts, feelings, or fantasies that are not directly observable.

The BIDR consists of two scales: the Overt Aggression Scale and the Covert Aggression Scale. Both scales contain a series of statements that participants are asked to rate on a Likert-type scale, typically ranging from 1 (strongly disagree) to 5 (strongly agree). The Overt Aggression Scale measures overt aggressive tendencies, while the Covert Aggression Scale measures covert aggressive tendencies.

The BIDR has been used in various research studies and clinical settings to understand the nature and prevalence of aggression, as well as to assess individuals who may have aggressive tendencies. It helps researchers and clinicians gain insights into the underlying factors and motivations behind aggressive behaviors, and it can also be used to evaluate the effectiveness of interventions aimed at reducing aggression.

In summary, the BIDR is a psychological test that is used to measure aggression. It assesses both overt and covert aggression and consists of two scales: the Overt Aggression Scale and the Covert Aggression Scale. By using the BIDR, researchers and clinicians can gain a better understanding of aggression and develop appropriate interventions to address aggressive behaviors.