Which of the Following Is Thomas Edison Credited with Inventing

question 23

Multiple Choice

Which of the following is Thomas Edison credited with inventing?

• A) synthetic fertilizer and the diesel engine
• B) the automobile and the steam engine
• C) the airplane and the vacuum cleaner
• D) the electric light bulb and the phonograph

---

Definitions:

Opportunity Cost

The cost of forgoing the next best alternative when making a decision.

Accounting Profit

The total revenue of a business minus the explicit costs and depreciation, calculated using standard accounting practices.

Annual Revenue

The total income generated by a company or an organization from its operations, calculated on a yearly basis.

Normal Profit

The level of profit necessary for a company to remain competitive in the market, essentially breaking even when accounting for both explicit and implicit costs.