The correct order from softest to loudest among the given symbols is: pp, p, mp, mf, f, ff.
However, since this exact sequence isn't listed in your options, the option that comes closest to this order is: pp, mf, ff.
To clarify:
- pp (pianissimo) - very soft
- p (piano) - soft
- mp (mezzo-piano) - moderately soft
- mf (mezzo-forte) - moderately loud
- f (forte) - loud
- ff (fortissimo) - very loud
So, the full ordering would be pp, p, mp, mf, f, ff. If you need to choose from the provided options, pp, mf, ff is the best answer but note it doesn't include all dynamics in your question.