Existing knowledge can be adapted and extended.
A new program, a changed machine or a different workflow may call for additional practice. Someone with work experience does not start from zero: existing knowledge helps them understand new tasks and learn what they need.
The Vocational Training Act distinguishes, among other things, further training to adapt existing skills from training for higher qualifications. Retraining instead aims at a different occupation. Not every change therefore requires starting an entirely new career.

The other three answers
The incorrect answers treat learning as irrelevant, finished or impossible.
It doesn't matter what you learn.
What someone learns matters. Useful content depends on their tasks, goals and required skills.
Children learn everything important for work at school. After school, you don't need to continue learning.
School cannot anticipate all knowledge someone will need later. Changes at work may require further learning.
Everyone must stop working earlier because everything changes.
Change does not mean everyone must stop working earlier. Further learning is one way to respond to new requirements.
A learning goal needs suitable conditions.
A course should fit the goal and be feasible in terms of time and cost. The Federal Employment Agency recommends clarifying these conditions in advance. An offer or consultation is not a promise that every course will be funded.
The exam question creates neither a general duty to undertake unpaid study in personal time nor a guarantee of promotion or employment. Specific workplace training duties and costs depend on the applicable arrangements.
Section 1 · Further training · Vocational Training Act ↗A qualification is a milestone; learning continues.
New requirements may call for relevant new knowledge without making existing experience worthless.
Three words for this question
- die Weiterbildungcontinuing education
- Learning that extends existing knowledge and skills after an initial educational phase.
- die Anpassungsfortbildungadaptation training
- Training that maintains existing occupational skills and adapts them to new requirements.
- die Umschulungretraining
- Training for a different occupation.
