Tom worked at NASA for 13 years. In the 14th year, his job was automated, resulting in him losing his job. He looked for a new job for 18 months before finding a job in a different line of work that paid less. During his 18-month job search, Tom was considered to be

A. Seasonally unemployed.
B. Frictionally unemployed.
C. Structurally unemployed.
D. Cyclically unemployed.

Answer: C