One major difference between oligopoly and perfect competition is that A. oligopolistic firms act interdependently while competitive firms operate independently. B. oligopolistic firms act independently while competitive firms operate interdependently. C. There is no major difference in the two types of firms since they both act interdependently. D. There is no major difference in the two types of firms since they both act independently.

B. oligopolistic firms act independently while competitive firms operate interdependently.

Explanation:

A perfect competition is characterised by many buyers and sellers of homogenous goods and services produced in an economy within a given period which is usually a year. Market prices are set by the forces of demand and supply.

An oligopoly is characterised by few large firms. Firms in an oligopoly usually come together collusively to either set the prices or the quantity to be supplied in order to earn higher profits.

I hope my answer helps you

d. $0

Explanation:

IRS rules state that if a person sells their principal residence in which they have lived for at least 2 of the last 5 years, they are not to be taxed on up to $250,000 of profit.

Sam had lived in the sold house for 10 years and this was his principal residence so it qualifies for the above provision.

Gain = Selling price - Basis

= 210,000 - 60,000

= $150,000.

This gain is less than the $250,000 allowed so Sam would recognize a gain of $0.