Final answer:
The number of TLF focus elements for the EDST process is not universally established and could vary with different educational models. To provide a correct answer, one must refer to the specific EDST framework or course material in question.
Step-by-step explanation:
The number of Teaching, Learning, and Feedback (TLF) focus elements for the Effective Digital and Social Teaching (EDST) process is not commonly established across educational frameworks as they can vary based on the approach and the system in place. However, if this is a specific question regarding a distinct EDST model with a predefined number of TLF focus elements, the correct answer would need to reflect that specific model's framework. Since no widely known EDST model is associated with a standard count of TLF focus elements, it is important to refer to the course material or educational framework you are studying to provide an accurate answer.