A seller is willing to sell a product only if the seller receives a price that is at least as great as the ... ?

a. seller's producer surplus.

b. seller's cost of production.

c. sellers profit.

d. average willingness to pay of buyers of the product.

I believe its letter B

"B"

Explanation:

The sole aim of every business is for profit making as no trader wishes to trade and make loss. He will need to ensure the sustainability of his business into a foreseeable future.

For profit to be made, a seller sells its goods and services at the cost price plus a decided mark up price

The least price that a seller can sell its goods, under normal market condition is the seller's cost of production. With this, he can still keep the business running and avoid insolvency