6. The three types of depreciation INCLUDE physical deterioration, external obsolescence, and:

Answer: A

Explanation:

Functional obsolescence

Functional obsolescence is the third type of depreciation, alongside physical deterioration and external obsolescence. This form of depreciation occurs when an asset becomes outdated or less useful due to design flaws or changes in market preferences.

A) Functional obsolescence

This option is correct because functional obsolescence refers specifically to the loss in value of an asset due to factors related to its design or functionality. It is recognized as one of the three main types of depreciation, which also include physical deterioration and external obsolescence.

B) Non-conforming value

Non-conforming value is not a recognized type of depreciation. Instead, it typically refers to properties that do not meet current zoning or market standards. Therefore, it does not fit within the context of the three types of depreciation mentioned.

C) Regression

Regression is not a type of depreciation; rather, it is a statistical method used to analyze relationships between variables. It does not pertain to the loss of value in assets due to physical deterioration, external obsolescence, or functional obsolescence.

D) Progressive deterioration

Progressive deterioration suggests a gradual decline in condition but is not a formal category of depreciation. The term does not accurately capture the distinct concepts of functional obsolescence, physical deterioration, or external obsolescence.

Conclusion

Functional obsolescence is definitively the correct answer, as it is one of the three primary types of depreciation recognized in asset valuation. The other options fail to represent valid categories of depreciation, which confirms that they are not applicable in this context. Understanding these types of depreciation is crucial for accurate property assessment and investment decision-making.