Aline of toys based on a popular children's tv series is an example of
a. core products
b. ancillary products
c. sponsored products
d. endorsed products

 Ancillary products.

Explanation:

An ancillary product is a product that is acquired as a bonus or add-on purchase when buying another product.

Once watching the TV series, kids everywhere want to join their lives, thus buying the toys.

B) Ancillary products

Explanation:

A line of toys based on a popular children's TV series is an example of ancillary product.

Ancillary product is a concept used to describe an extra purchase we get when buying our main product of interest. In this case we could see the mutual ancillary both for the toys company and the TV shows as this kind of promotion would be benefitial to both parties.

i got 3,4 and 5 as an answer

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).