An umbrella term for a variety of health plans, each of which at some level integrates the financing and delivery of care to an enrolled population is

   Managed care

Explanation:  The goal of this care is primarily to reduce the cost of medical care while improving the quality of care provided and providing health insurance. All that  is achieved through the proper definition and coordination of all necessary measures at all levels, in order to achieve the desired quality and reduce costs. The needs of both preventative medicine and home treatment are also emphasised. Managed care is, therefore, a whole series of planned activities to achieve the aforementioned improvements or in other words it is the whole system or, as stated, an umbrella, which implies a type of health insurance. These activities provide contracts with healthcare institutions and healthcare professionals for the provision of care, preventative treatment and home care at reduced cost. The whole network of plans and activities based on those plans for providing this type of health insurance is at stake.

i dont know but thats a great qusestion

marginal cost is a microeconomic measure that us to evaluate the extent to which the level of production of a good is sustainable in accounting, that is, to how many quantities the company plans to profit from the production of the good.

the concept of marginal cost is simple, it means the cost of producing one more item. for example, in the case of pies, the marginal cost is the cost of producing one more pie than those that have already been produced.

it is important to understand that productive activity influences marginal cost. the marginal cost of some goods can be very high, while others may be insignificant. for example, the marginal cost of producing an extra plane is very high. already the marginal cost of a water company to provide 1l more water is derisory.

in the case of pies, the cost involves the inputs, the labor and the fixed cost, which involves the fixed space of the bakery. the level of production initially has the marginal cost decreasing because there is space and manpower available. however, to produce more you have to hire more workers and buy more inputs. if physical space is limited, workers will conflict with places, inputs and their productivity will decrease, meaning there is an optimum point of production for each level of space and manpower. from this point on, the productivity of the workers will be getting smaller because of lack of space, so that the marginal cost of producing one more pie will be increasing. so, although you have not posted the chart, but if you have the answer, you can see that my explanation goes according to the marginal cost curve that will increase from the 4th pie, answer (c).