Need help on filling in Inland Revenue form

I'm 17 - and still at 6th form - this is my first job (paperound)

I'm confused on which of these options applies to me:

A - this is my first regular job since leaving full-time education. I have not claimed job seeked's allowance, or income support paid because of unemployment since then.

OR

B - This is my only or main job

I'm 17 - and still at 6th form - this is my first job (paperound)

I'm confused on which of these options applies to me:

A - this is my first regular job since leaving full-time education. I have not claimed job seeked's allowance, or income support paid because of unemployment since then.

OR

B - This is my only or main job

I'm assuming this is a p38, so you don't pay tax. Select B, as you are still in full time ed...