When a piece of music states D.C. al Fine, what instruction is given?

The instruction "D.C. al Fine" translates to "Da Capo al Fine," which is an Italian musical term meaning "from the beginning to the end." In this context, it signals the performer to return to the start of the piece and play until reaching the "Fine" marking, which indicates where the music should conclude. This is a common directive in musical compositions that allows for repetition of a section, adding to the overall structure and musical development without writing out the repeated sections in full.

The other options do not accurately reflect the meaning of the term. For instance, playing the section slowly or very loud would not be relevant actions indicated by "D.C. al Fine," as those pertain to dynamics and tempo rather than structure. Similarly, repeating the last section twice does not correspond to the directive, which focuses on going back to the beginning instead of a specific segment. Understanding "D.C. al Fine" helps musicians interpret the score correctly and execute the desired form as intended by the composer.