The Case Study Known as the "Twins Case" Relating to Changing

question 25

Multiple Choice

The case study known as the "twins case" relating to changing sexual identity shows that:

• A) authority figures are not necessarily trustworthy
• B) research on the topic of sexual identity was and is) rudimentary at best
• C) nature is as crucial in determining human sexual identity as is nurture
• D) all of the above
• E) none of the above

---

Definitions:

Units

Basic quantities or measures adopted to quantify and measure variables.

Marginal Revenue

The additional income earned by selling one more unit of a good or service.

Marginal Costs

The change in total production cost that arises when the quantity produced is incremented by one unit.

Investment

The allocation of resources, usually money, in order to gain profitable returns as interest, income, or appreciation in value.