Answer:
One of the key features of Renaissance art was the use of geometric and symmetric shapes to create a sense of balance and harmony. Michelangelo's Pietà is shaped like a triangle, with Mary's head at the top and Christ's body in her lap forming the base.
The answer is D. You know that thing that goes Do Re Mi Fa So La Te Do? There’s a good chance you sang it in your head. It’s a scale :)
For number 1 the answer is c (dissonant). And for number 2 the answer is a (the piece had a different melody for each verse.
Until modern times, art works have been primarily devoted to RELIGIOUS themes.