Exit this survey Heart diseases quiz Question Title * 1. Q1 Heart diseases: facts and figures (pick the CORRECT statement) (a) account for 25% of the total disease burden among Australians in 2007 (b) and periodontal disease have a multifactorial aetiology (c) contribute to one-third of all deaths among Australians in 2007 (d) are uncommon in physically inactive people (e) are considered as the principal cause of morbidity in Australians Next