The correct answer is the option C: Because the effect of compounding allows growth to build upon previous growth.
Explanation:
To begin with, the term of <em>"Compounding"</em> in economics refers to the situation in which an assets' earnings are reinvested to generate more additional earnings over the pass of time and therefore that in an economy when there is a small growth the investors take advantage of the effect that the compounding has over the situation and use it in order to generate more earning in the future and that is why that the the effect of compounding allows growth to build only upon previous growth.
Based on the information provided within the question it can be said that in this scenario Spalkyn most likely provides Ownership utility. This term refers to when a company allows for the orderly transfer of their goods or services to the buyer. Which is what Spalkyn does by giving their customers various different options when purchasing their goods, so that they can choose whichever option is easiest for them.