Final answer:
The answer to the question is option 1. The difference in value between the office building worth $150,000 and the investment land worth $175,000 is $25,000.
Step-by-step explanation:
The question requires us to find the difference in value between an office building and investment land. Rolf's office building is worth $150,000, and he desires to exchange it for investment land valued at $175,000. To calculate the difference, we simply subtract the value of the office building from the value of the investment land.
So, the difference would be $175,000 - $150,000 = $25,000.
This difference represents the additional value that the investment land holds over the office building. Therefore, the answer to the question is option 1: $25,000.