What Development Led to the Emergence of the Modern Skyscraper

question 9

Multiple Choice

What development led to the emergence of the modern skyscraper in the 1890s?

• A) The invention of the elevator
• B) The advent of structural steel
• C) The decline of corporate power
• D) The advent of cast iron

---

Definitions:

Automated Equipment

Machinery that operates with minimal human intervention, often using computer control systems to perform tasks more efficiently.

Attractive Investment

An investment proposition that is deemed desirable due to its potential for significant returns or other beneficial outcomes.

Discount Rate

The rate of interest applied to calculate the present value of future cash flows.

Net Present Value

A method used to evaluate the profitability of an investment by calculating the difference between the present value of cash inflows and outflows over a period of time.