Answer:
All the options given are correct.
Step-by-step explanation:
A - The guitar was invented in Spain which is located in southern Europe. Priorly, a Spanish guitar only had four strings. A six-string guitar was introduced later after the instrument became popular in Europe. The invention of the guitar brought a paradigm shift in cultural practices.
B - Popular operas like Aida, La Gioconda, Cavalleria Rusticana, etc., were created in Italy.
C - Famous Norwegian sculptors like Gustav Vigeland experimented with the ancient and Renaissance artwork to give birth to new styles of sculptures.
D - Swedes popular music has for a long time managed to stay on the top of the charts along with popular American, British and Australian popular music.