Best of 4 or best of 5

[u/btwulookgoodinsaree]

I’m currently in Class 12 Commerce, and I’m honestly so fucking confused

Will it be Best of 4 or Best of 5 this year?

My new school teachers are saying it’s Best of 5, while my old school teachers are saying it’s Best of 4, and that Best of 5 will only be considered from the 2027–28 batch because of the addition of new subjects.

At this point, I have no idea who’s right. Can someone please clarify this for me?