Which statement best describes why health promotion initiatives in Australia have been more effective in reducing the incidence of people infected with HIV than with hepatitis C? (A) Hepatitis C has been viewed by health authorities in Australia as a less serious risk to public health than HIV - HSC - SSCE Personal Development and Physical Education - Question 9 - 2003 - Paper 1

This statement notes the availability of more effective blood screening techniques for HIV. While this is a relevant point, it does not encompass the broader context of health promotion initiatives in reducing incidence.

This option indicates that individuals infected with HIV have been more effective in lobbying for their health needs. This could potentially lead to more focused health promotion efforts, making it a valid consideration.

This mentions that those at risk of hepatitis C engage in more unsafe behaviors. This is essential in understanding the incidence rates; however, it does not directly address the effectiveness of health promotion initiatives.

Based on the given statements, option (C) is the most accurate as it highlights the advocacy and effectiveness of people infected with HIV in lobbying for their health, contributing to more successful health promotion initiatives.