(Sort-of) Maths Question

Hi all, this is an interesting pattern question.

I am giving 100 points for the FIRST correct answer only!

This is the question:
Which letter does the question mark below represent?
J A S O N ?

All the best!

Revision Question

Here is a P4 Science question for revision.

Answer the question. Feel free to debate about your classmates' responses.

30 points for best response.
30 marks for best debate / rebuttal.
10 consolation points for each logical responses.

Note: No extra points for first entry. No points for late entries.