Which of the following is an example of structural unemployment?
a. vanessa's job as a professional apologizer in japan is cut as more people learn to say sorry for themselves.

b. kenny loses his job as a dog surfing instructor in hawaii when recessions force more people to leave pets at home as they travel.

c. whitney quite her job as a professional cuddled to become an undercover bridesmaid.

d. daniel’s job as a medical examiner is cut as police departments experience budget cuts due to lower tax revenues.