Study the following series Ⅰ and Ⅱ comprising letters/digits/symbols and answer the questions given below.
$\textbf{Series I :}$ N P Q * 5 4 B Z \$ # 3 7 D 9 A ? F 8 G H 1 + D K 6
$\textbf{Series II:}$ 7 4 € J M 1 © Y P 8 Q R 5 T N 6 2 ? U A 3 9 @ I S
If the letters, the digits and the symbols from each series are counted separately, which of the following is lowest in count?
- Symbols in series I
- Letters in series I
- Digits in series II
- Symbols in series II