A share of ownership in a company that can be bought and sold. Agricultural Adjustment Administration Welfare Stock Foreclosure

The correct answer is - Stock.

The stocks are a share of ownership in a company, and it can be sold or bought by the will of the owner of them. The appearance of the stocks meant a development of new type of companies, the corporations. Multiple people would have invested into the company, having certain amount of stocks in their possession in accordance to their investment. Apart from larger investment, the more stocks someone has the higher the profit will be as well. In the present, this is the dominant type of companies, and each company can have anywhere from several tens of stocks, to several millions of stocks.