Which statement about printing is fake

In contour drawings crossing lines is one way to indicate this

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? "

Why were staff lines an important improvement to musical notation a. sl indicated rhythm b. sl indicated dynamics c. sl indicated pitch d. sl indicated meter