Who Among the Following Is Most Likely to Be Diagnosed

Who among the following is most likely to be diagnosed with generalized anxiety disorder?

A) Katy,who suffers from recurrent,sudden onsets of intense terror,often without warning and with no specific cause
B) Kim,who has had a fear of spiders since childhood
C) Jack,who gets nervous when appearing for school tests
D) Zeenath,who has been suffering from persistent nervousness for no specific reason for over a year