Complete the Sequence: Finding Missing Terms Around 8500

Let's solve the problem following these steps:

• Step 1: Identify the given information: We have a number 8500 and an indication of a sequence: $\Box, 8500, \Box$.
• Step 2: Find the predecessor: Using the formula for the predecessor of a number, calculate $8500 - 1 = 8499$.
• Step 3: Find the successor: Using the formula for the successor of a number, calculate $8500 + 1 = 8501$.

By computing these values, we find the missing numbers in the sequence as 8499 and 8501. Therefore, the sequence is: $8499, 8500, 8501$.

The correct choice from the provided multiple-choice answers is: $8499,8501$.