Refer to the following number and symbol series and answer the question that follows.

Counting to be done from left to right only. (All numbers are single-digit numbers only)

(Left) 2 # @ 1 4 ^ 8 9 + 2 ? $ 3 ^ 7 * 9 8 (Right)

How many such symbols are there, each of which is immediately preceded by a number and also immediately followed by another number?

The correct option is Four.

To find the symbols that are immediately preceded by a number and immediately followed by another number, we look for patterns in the given sequence that match the format: Number – Symbol – Number.

Let's analyze the given sequence from left to right:
2 # @ 1 4 ^ 8 9 + 2 ? $ 3 ^ 7 * 9 8

We evaluate each symbol in the series:
1. #: Preceded by 2 (number) but followed by @ (symbol). (Does not match)
2. @: Preceded by # (symbol) and followed by 1 (number). (Does not match)
3. ^: Preceded by 4 (number) and followed by 8 (number). (Match 1: 4 ^ 8)
4. +: Preceded by 9 (number) and followed by 2 (number). (Match 2: 9 + 2)
5. ?: Preceded by 2 (number) but followed by $ (symbol). (Does not match)
6. $: Preceded by ? (symbol) and followed by 3 (number). (Does not match)
7. ^: Preceded by 3 (number) and followed by 7 (number). (Match 3: 3 ^ 7)
8. *: Preceded by 7 (number) and followed by 9 (number). (Match 4: 7 * 9)

Thus, there are exactly four symbols that are immediately preceded by a number and immediately followed by a number.