select all of the true statements A. pie is the area of a circle of radius 1 B. is the area of a circle diameter 1 C. pie is the circumfrence of a radius circle of radius 1 D. pie is the circumfrence of a circle of a diameter 1 E. pie is the constant of portionality relating to the diameter of a circle to its circumfrence F. pie is the constant of porportionality relating the radius of a circle to its area

The affordable care act has expanded mental health and substance abuse benefits to 62 million people and is an addition to the mental health parity act of 2008. the changes and additions require mental health coverage in small group and individual plans where people were not previously covered. what is the biggest benefit of these changes? what major challenges are still associated with mental health coverage? explain your reasoning.