A(n) is a group to which a person belongs as a member and with which the person feels a sense of identity.

In-group

Explanation:

An In group is the group that is within the group people or members of the group identify each other on the base of race, ethnicity, and gender and community, etc. People who belong to an in the group do not harm each other but if people are from out group they can harm other group people.

The moral judgment also is taken on the bases of in group and out-group morality. If someone misbehaves in an in-group, not a big deal, they just ignore that but the misbehaves conduct from an out-group then it is a big deal and treats other group people in a very harsh manner.

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).

protectionism fosters competition and keeps price regulated is not an argument in favor of protectionism.