"the temporary assistance for needy families (tanf) program is designed to needy families achieve self-sufficiency. states receive block grants to design and operate programs that accomplish one of the purposes of the tanf program." the above statement from the us department of health and human services's office of family assistance division's website best describes which of the following government interventions often undertaken in a market economy? a) market failures b) redistribution of income c) public goods and services d) protection of property rights