Select the related word/letters/number from the given alternatives.EF : JA :: NO : ?

Let's examine the numerical position of the letters:E = 5, F = 6J = 10, A = 1 (or 27)For the first letter:$\text{E (5)}+5=\text{J (10)}$ For the second letter:$\text{F (6)}-5=\text{A (1)}$ Applying the same pattern ($+5,-5$) to NO:N = 14, O = 15First letter: $14+5=19\to \text{S}$ Second letter: $15-5=10\to \text{J}$ Thus, the related pair is SJ.