Penny is an intensely shy person who rarely attends social gatherings. in addition, she normally will not accept dinner invitations and refuses to speak in public, even if it is among a group of friends. penny most likely suffers from disorder.
a. generalized anxiety.
b. social anxiety.
c. separation anxiety.
d. post-traumatic stress

Option B, social anxiety, is the right answer.

Explanation:

Social anxiety is a concept which applies to a situation where one fears of the social situations that include interaction with others. In simple terms, social anxiety is the very fear of an individual of being judged negatively by other people of the society. Such a situation is known as a pervasive disorder because it causes anxiety and concern in almost all situation of a person's life.

d.) continue to rise rapidly