What would 'come prima' suggest you do after a change in music?

The term 'come prima' is an Italian musical instruction that translates to "as before." This phrase indicates that after a section of music has deviated from the original style or theme, the performer is expected to return to the initial style or manner of playing. This instruction serves to signal a return to the original characteristics of the music, whether it's in terms of dynamics, tempo, or expressiveness.

In the context of the choices presented, suggesting a return to the original style is key, as this aligns perfectly with the meaning of 'come prima.' By using this term, the composer is emphasizing the importance of consistency and adherence to the established musical character after any variations or changes that may have occurred. Techniques such as playing faster, increasing dynamics, or slowing down the tempo do not directly reflect the directive of returning to the original style and therefore do not align with the implications of 'come prima.'