True statement regarding specific death rates

(A1I of the above) (54- Park 20th)Specific death rates - may be (a) cause or disease specific e.g. TB, cancer, accidents (b) Related to specific groups e.g. age specific, sex specific, age and sex specific etc.* Rates can also be made specific for many others variables such as income, religion, race, housing etc.* Specific death rates can help us to identify particular groups or groups "at risk" for preventive action. They permit comparisons between different causes within the same populations* Specific death rates are obtained mainly in countries in which a satisfactory civil registration system operates and in which a high proportion of death is certified medically.