Could they ask to describe the different types of cancer and why they are included as part of the NHPA cancer control?
and for NHPA health promotion strategies, how many are you guys knowing? i was thinking 2 in detail for each and be able to name just one more?
They usually won't ask you specifically why for e.g. Colorectal cancer was included as part of the Cancer Control NHPA - all you have to know is just like one sentence about each of the cancers and that's it - you don't have to go into extreme detail regarding each of the cancers

If you do feel that it might be good to know why each cancer was included in this NHPA, a general answer which applies to ALL of the cancers is that they're:
1) A major contributor to the fatal component of the burden of disease (YLL)
2) Cancers require hospitalisation and treatment such as chemotherapy which put burden on the healthcare system due to the high costs
3) Some cancers (e.g. lung cancer, colorectal cancer, skin cancers (melanoma)) are preventable through adoption of healthy lifestyle (in this case through avoiding smoking/eating a high fibre diet and getting some exercise/being "sun smart").
4) Also contribute significantly to the non-fatal component of burden of disease if the cancer is enduring and of a chronic nature (e.g. in the case of lung and colorectal cancers).
5) Have high direct, indirect and intangible costs to the cancer stricken individual and their families and community. E.g. costs of treatment, medication, hospitalisations. As well as lost productivity, lost time spent in treatment, and also loss of life when the cancer becomes uncontrollable.
For the NHPA Health promotion strategy, knowing one promotion strategy in detail for each NHPA is more than enough

If you can remember two then that's awesome! But 1 is just the minimum and necessary requirement