Twenty-year-old hope lives in a small town. she has always been extremely shy, but lately she has been feeling intensely afraid that others are scrutinizing her. she avoids speaking in class, she no longer goes to parties, and she starts trembling whenever she is in a public place. hope seems to be suffering from anxiety disorder.

Social Anxiety Disorder is a mental illness where an individual have problems with everyday social interactions and these pose for the patient irrational anxiety and fear. There are treatments for this disorder which include talk therapy and sometimes anti depressant can also help cope with the problem.

experiments.

surveys.

questionnaires.

interviews.

case studies.

participant and non-participant observation.

observational trials.

studies using the delphi method.

a would be the answer