Which Is the Correct Priority of Assigning a Mapping Variable

Which is the correct priority of assigning a mapping variable?

A) Workflow parameter file, session parameter file, pre-session assignment, repository value, declared initial value, default value
B) Session parameter file, workflow parameter file, repository value, declared initial value
C) Repository value, workflow parameter file, pre-session assignment, session parameter file, default value
D) Repository value, declared initial value, default value