With Respect to the U

question 11

Multiple Choice

With respect to the U.S. transportation system, what best explains why electric motors are considered as the most sustainable means of running cars and trains in the future?

• A) fuels for internal combustion engines all produce greenhouse gases
• B) conventional crude oil will soon be in short supply
• C) internal combustion engines are too inefficient for the expected growth in population
• D) reserves of non-conventional fossil fuel are relatively small
• E) electricity generated by nuclear power is expected to become significantly less expensive

---

Definitions:

Break-Even

The point at which total costs equal total revenues, resulting in no net loss or gain for a business.

Variable Cost

Costs that vary directly with the level of production or volume of output.

Fixed Costs

Costs that do not change with the level of production or sales, such as rent, salaries, and insurance premiums, providing a basis for operational planning.

Operating Profit

Earnings before interest and taxes (EBIT), representing the profit a company makes from its operations after subtracting operating expenses from revenue.