Kente __________ was originally reserved for state regalia

All of the following is true of Shostakovich's String Quartet No. 8 EXCEPT it?

a) was written while the composer was an inmate in a prisoner-of-war camp b) contains the composer's musical monogram c) contains musical quotations form Shostakovich's operas, symphonies, and chamber works d) is dedicated to the memory of the victims of fascism and war

To what does SATB refer?

What will be an ideal response?