Final answer:
The model that all trainees subscribe to is Standardization of curriculum.
Step-by-step explanation:
The model that all trainees subscribe to is a) Standardization of curriculum.
Standardization of curriculum refers to the development and implementation of a consistent set of learning objectives, content, and assessments across all trainee programs. This ensures that all trainees receive the same knowledge and skills, regardless of their background or location. Standardization helps create a level playing field and promotes fairness and equity in education.