Which of the following mental disorders is not considered an anxiety disorder?
a. a phobia
b. a panic attack
c. schizophrenia
d. post-traumatic stress disorder

I would say C, schizophrenia,
because schizophrenia is "a mental disorder that in many ways centers around not recognizing what is part of reality – namely, having psychotic breakdowns." It is not related to anxiety, as anxiety is classified as "neurotic" while schizophrenia is classified as "psychotic".

Lilas job is a secretary

True. the more you know, the better of you will be.