Answer:
A. histrionic
Step-by-step explanation:
Histrionic personality disorder is also known as HPD. It is the mental illness which affects the way a person feels, perceives, thinks and relates to others.
The meaning of the word "histrionic" is 'theatrical' or 'dramatic'. It is characterized as the condition where people seeks attentions and talks with dramatic emotions. These persons can be easily influenced. People with histrionic personality disorder suffers from changing emotions very quickly.
In the context, when the music band, "The Beatles" first performed people were so attached and excited by the performance that they shouted, many fainted, exaggerated, praised the group emotionally. all these behaviors of the people shows a close resemblance to the symptoms shown by people suffering from Histrionic personality disorder.