Answer:
Structural unemployment
Step-by-step explanation:
Structural unemployment arises when workers are unable to find work because their skills do not match market requirements. Structural unemployment cans result from changes in technology or unavailability of job openings that match the skills possessed by the unemployed population.
Juan's skills are irrelevant in the industry. No employer will be interested in her with her current training. For Juan to find work, she needs to learn new skills.