According to the new UNAIDS report "The Urgency of Now:

Solution

Statement A is incorrect because the target is not to reduce the total number of people living with HIV to below 10 million but to reduce new infections and ensure treatment for those living with HIV. Statement B is incorrect as the target is to reduce new HIV infections to below 370,000 by 2025, not maintain 1.3 million new infections annually. Statement C is correct because the report emphasizes the need for sufficient and sustainable resourcing and the protection of human rights to effectively reduce the number of people needing lifelong treatment and prevent a rise in infections. Statement D is incorrect because the report calls for increased resource mobilization across various regions, including those with rising infection rates. Statement E is incorrect as the goal is to ensure that more people receive life-saving treatment, not reduce the number of those receiving it. Therefore, the correct critical step according to the report is ensuring sufficient and sustainable resourcing and protection of human rights, making C the correct answer for this question.