; and (B) the primary benefit requirement of such block grant program under section 101(c) of such Act ( 42 U.S.C. 5301(c) ) and the primary benefit requirement of the CDBG Plus Program (as provided in subsection (d) of this section). (c) Primary objective The primary objective of this section and of the CDBG Plus Program of each grantee under the program shall be to reduce and end homelessness and housing instability and to reduce and prevent cost-burdens, with priority given to providing shelter and temporary and permanent housing for low-income and extremely low-income households and for members of a population at higher risk of homelessness, as such term is defined in section 3 of the Housing is a Human Right Act of 2020 . (d) Primary benefit requirement Consistent with the primary objective under subsection (c), all of the Federal assistance provided to States and units of general local government under the CDBG Plus Program shall be used for the support of activities that benefit homeless, housing unstable, or cost-burdened households. (e) Program differences Notwithstanding any provision of title I of the Housing and Community Development Act of 1974 ( 42 U.S.C. 5301 et seq.), the CDBG Plus Program shall be subject to the following requirements: (1) Eligible activities Notwithstanding section 105 of such title ( 42 U.S.C. 5305 ), activities assisted under the CDBG Plus Program may include only the following activities: (A) Projects directed to the removal of material and architectural barriers which restrict the mobility and accessibility of elderly persons and persons with disabilities, and projects that assist elderly persons to age in place. (B) The acquisition of real property (including air rights, water rights, and other interests therein) which is appropriate for rehabilitation, conservation, or construction of permanent affordable housing or temporary shelter or transitional housing. (C) The provision of public services that increase shelter and stability for persons experiencing homelessness or