While still in the hospital nursery, infants respond differently to slow music, such as lullabies, and lively music, such as action songs. babies become more active when lively music is played (wilcox, 1994). the musical element that infants are responding to is:

You'd have to give me options to choose from before i can answer you.

The answer is ink because it has to soke in the paper so i believe the answer is b.ink 

The linear perspective changed the quality of art because it gave art a sense of reality. it gave the illusion that the background and surroundings were actually close and/or far and a sense of depth. linear perspective change the quality of art following its birth the renaissance period as they want the art to be more realistic and they believe one way to achieve it is to use the method of linear perspective. it uses the principle of math to realistically portray space and depth in art. 

The period that marks the paleolithic era is between the 250,000 to 10,000 years.