Sure, let's solve this step-by-step.
The city's elevation is 23.5 feet below sea level. This means the elevation is negative since it is below sea level.
1. So, we can represent the elevation as -23.5 feet.
2. We need to identify the two integers between which -23.5 lies.
- When we look at the number line, -23.5 is positioned between -24 and -23.
Because -23.5 is greater than -24 but less than -23, it logically falls between these two integers.
Therefore, the correct answer is:
B. -23 and -24
