Please help this is past due!! It just needs to be a few sentences please no links and the correct awnser will get brainliest✨ How did Estonia use music to fight back against the Soviet Union when they tried to take over their government?

Silverpoint is a. a technique using the blackish residue of impure carbon obtained by removing water from animal and vegetation substances. b. a technique involving the use of a metal point, and a thin silver wire, popular in the 14th and 15th centuries. c. a printmaking technique born from crayon manner that imitates the appearance of chalk lines. d. a technique used since the 16th century involving a stick filled with either colored or black graphite, a heated mixture of carbon and clay