Answer:
b. job and technical training
Step-by-step explanation:
The job and the technical training is the training which is to be provided by the company or the centers to the workers or the people who want to trained in a particular service or specialized in a service in order to get a better and satisfying job through which they can build their career in a better way
In the given situation, the fitness center send the instructors to the certified training program to learn how to use these machines correctly that reflects the job and technical training