In the Grade 8 Repertoire book, the Schubert Scherzo in Bb major...Bar 15, the C is not repeated for every 16th group. The RCM copy shows a C, a D, then C. I always thought it was a repeated C and in every copy I have checked, the C is repeated. The bothersome thing is that at the end of the next page, in the different key, the F is not repeated, but shows F, G, F. So......what should my student do?