The subject is music Who is considered the greatest composer of the fourteenth century?
O Guillaume de Machaut
O Pope Gregory
O Guido d'Arezzo
O Hildegard von Bergen

Ineed someone to describe what they mean in the instructions !

Which clef would be used for the violin? a. treble b. tenor c. bass d. alto what causes sound? a. electric fields b. magnetic fields c. vibrating electrons d. vibrating molecules

This example of early christian art contains christian symbolism that was unrecognizable by pagans. what is the title of this example of art? a.the rabbula gospelsb.sarcophagus of the church of santa maria antiquac.the sarcophagus of the good shepherdd.the baptism of the disciples