Smash or pass & free points

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? "

Which of the following was  not  part of the typical medieval mass ordinary service? kyriegloriacredo motetsanctusagnus dei

Visual rhythm indicates movement and suggests unity of form by the repetition of elements.