Explanation:

- Option 1: Income

- Income is the term used to describe monetary or other returns either earned (such as wages) or unearned (such as dividends) that accrue over a period of time.

- *Correct Answer:*

- Option 2: Services

- Services refer to activities or actions that are provided by others in exchange for payment.

- They are not typically linked with the accumulation of monetary returns over a period.

- Option 3: Price

- Price is the amount of money expected or required for something to be bought or sold.

- It doesn't relate to monetary returns over time.

- Option 4: Value

- Value is the perceived worth or importance of something.

- It isn't specifically about monetary returns accruing over time.