Help!! what is the answer?

What is the definition of aesthetics? a. the material or materials used by an artist to create artwork b. the branch of philosophy that deals with beauty and how it is expressed and appreciated c. the organization or arrangement of different elements within a work of art o d. the school of thought dedicated to examining the question, "what is art? "

Organum was first developed by religious singers adding another melody directly above the chant and mirroring the chant line. true false

Euphronios and phidias were artistis who lived in ancient