The graph shows the trends in the incidence of a type of cancer for males and females in Australia from 2004 to 2019 - HSC - SSCE Personal Development and Physical Education - Question 19 - 2021 - Paper 1

The graph indicates a trend for skin cancer in males and females, showing a gradual increase. Therefore, the type of cancer represented in the graph is skin cancer. The most effective strategy listed in the table is to 'Provide funding to state governments to implement prevention initiatives in education, workplace and community settings' (Option C). This strategy focuses on prevention and outreach, which can help reduce the incidence of skin cancer, thereby aiding the federal government in reducing overall expenditure on this type of cancer by 2040.