Order the four customisation approaches from lowest to highest setup cost, as the syllabus presents them.

• AIn context learning, Retrieval Augmented Generation, fine tuning, continued pre training.
• BFine tuning, in context learning, Retrieval Augmented Generation, continued pre training.
• CContinued pre training, fine tuning, Retrieval Augmented Generation, in context learning.
• DRetrieval Augmented Generation, in context learning, continued pre training, fine tuning.