Refer to the following number and symbol series and answer the question that follows. Counting to be done from left to right only.
(Left) 3 € $ 1 6 8 6 6 € $ # % # * 3 8 3 1 € 6 @ 3 (Right)
How many such symbols are there each of which is immediately preceded by a number and also immediately followed by a symbol?​​​

Given: (Left) 3 € $ 1 6 8 6 6 € $ # % # * 3 8 3 1 € 6 @ 3 (Right)

Logic: Number | Symbol | Symbol

(Left) 3 € $ 1 6 8 6 6 € $ # % # * 3 8 3 1 € 6 @ 3 (Right)

There are two such symbols are there each of which is immediately preceded by a number and also immediately followed by a symbol.

Thus, correct option is (d).