An organization that makes kitchenware has decided to sell off all of its linens. The cost of the linens was $15,000, and it was able to sell them for $25,000. This means that the company has: 

a) Realized a $10,000 annual profit mark 

b) Increased its inventory value by $10,000 mark 

c) Increased its equity by $10,000 mark 

d) Reduced its liability by $15,000