Help regarding registration about AY/EY code

[inception333]

Hi everybody. Can anybody please tell me what code to select in A level biology/chemistry/physics registration regarding practicals only.
In the registration form AY and EY options are available. Which one should I choose. I am appearing as a private candidate in 2015 May/June session.

 

[CaptainDanger]

I am not sure what EY means. What do you mean by practicals 'only'?

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[inception333]

I am not sure what EY means. What do you mean by practicals 'only'?

View attachment 50578​

Thanks a lot. By practicals I meant A level paper 3 of bio/phy/chem. I am grateful for your timely reply. And just for those who have any future query regarding my question, I found out that EY and AY codes does not make any difference except the timing of the paper.