help with ABRSM grade 1 clarinet please

[Clarinet9]

HI my dc is sitting this exam but he has a clarineo in C I have just got some music for him the ABRSM approved book of scores and we have no way of telling whether it is in c or B flat and suitable for a clarineo

Does anyone know the answer or how we can tell?
thanks loads

It will all be written for a B flat ckaribet

Out if curiosity is there a reason he's learning on a C clarinet which is quite rare fir beginners?

DS2 did G1 with ABRSM in March. He has a B flat clarinet. He played the pieces as written and they sounded fine; he got a distinction (non-stealth boast).

pictures it's not rare to start on a clarineo - they are designed for smaller/younger players. Bizarrely they need more puff though! A clarineo is acceptable for grades 1-3, the pupil plays as written but you need to transpose the accompaniment parts.