In your opinion which of the following topics is best suited to a phenomenological inquiry? To a ethnography?

In your opinion which of the following topics is best suited to a phenomenological inquiry? To a ethnography?
To a grounded theory study? Provide a rational for each response.
a-The passage through menarche among Hatian refugee
b-The process of coping among AIDS patients
c-The experience of having a child with leukemia
d-Rituals relating to dying among nursing home residents
e-Decision making processes among nurses regarding do-not-resucitate orders