Answer:
a. profits or rents are subject to rent seeking the welfare cost triangle
Step-by-step explanation:
Monopolies are businesses that have sole control of the supply and pricing of a product. Dead weight loss used to be regarded as consumer surplus that does not affect the amount of product that a monopolist can provide.
Gordon Tullock however argued that loss also occurs when businesses are seeking to be a monopoly. There is an associated cost on obtaining and maintaining a monopoly called rent seeking.
Also an additional cost as result of dead weight loss due to payment of tarrif. This can result from net welfare benefit or loss as a result of government policy change (this is referred to as welfare triangle).