In the Following Proof, Which Justification Is Correct for Line

question 49

Multiple Choice

In the following proof, which justification is correct for line 3? $\begin{array}{llcc} \text { (1) \( \sim \mathrm{Da} \) } &&\text { Premise} \\ \text { (2) \( (x) (\sim \mathrm{C} x \supset \mathrm{D} x) \) } & \text { \(/ \mathrm{Ca}\) }& \text { Premise/Conclusion } \\ \text { (3) \( \sim \mathrm{Cb} \supset \mathrm{Db} \) } &\\\end{array}$

• A)1 Add
• B)2 UI
• C)Assumption
• D)1, 2 MT
• E)None of these answers are correct.

---

Definitions:

Neoevolutionary Theory

Lenski’s analysis of the role that technology plays in people’s adjustment to the physical world.

Technology Haves

Individuals or communities that have ready access to modern digital technologies and the internet.

Unilinear Evolutionary Theories

Theories suggesting that societies progress through a series of predictable stages towards civilization.

Object Fad

A temporary, highly popular trend focused on a specific object or product, often characterized by rapid increase and decline in interest and demand.