Even though is tru that the D. option is one of the characteristics of this type of music, The one that perfectly describes it is the C. option: It was performed with no instruments. This type of music is very similar to the gregorian musica and there is an absense of instruments.
I am pretty sure that<span> the following which signifies a return to music that has been played before is the second option from the scale represented above : </span><span>B.Da capo sign. I choose this one because it has meaning "from the beginning'' which nicely coincides with the statement in the question.
Do hope it helps!
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