What inspired artists to paint in the neoclassical style? A. The rebirth of the Renaissance
B. The renewed interest in Mesopotamia
C. The revival of medieval architecture
D. The archaeological discovery of the Roman cities of Pompeii and Herculaneum

D

Explanation:  "France. Neoclassical art rose in popularity in mid-18th-century Europe, where the style drew heavily from both the Renaissance and classical Greek and Roman art, architecture, and culture." - https://www.invaluable.com/blog/neoclassical-art/

including the octave, the answer would 8 notes in a major scale with one note being played twice. ex) c major scale includes: c, d, e, f, g, a, b, c

notice that c is played twice

however, if you were to ask me how many different notes are in a major scale- the answer would be 7.  

is it to late to answer?