Answer:
The correct answer is letter "C": sweat equity.
Step-by-step explanation:
Sweat equity refers to the efforts individuals make for a piece of work to meet expectations. The term is more often used in the real estate industry and business while talking about startups. In the real state industry, sweat equity refers to the work done by people to make the repairs and maintenance necessary to houses in an attempt to save money paying others to do that.
In business, sweat equity is the extra time, physical and mental work entrepreneurs dedicate to startups to make sure the new business works.