A person is moving from city A to city B, within an EEA member state.

The hospital in A can send the data directly to hospital B, as requested by the patient. Correct. The right to portability allows this. (Literature: A, Chapter 3)

The hospital in A can send the file to hospital B, before the patient has requested it. Incorrect. The hospital in B can only acquire the file from A with consent or if it is in the vital interest of the data subject and consent cannot be obtained.

The hospital in A can send the medical file to the data subject, but not to another hospital. Incorrect. The data subject can ask for the data to be sent directly.

The hospital in A cannot send the file, because there is no legitimate ground for processing. Incorrect. A request, which implies consent, of the data subject is a sufficient legitimate ground.