What is true of the Baroque and Rococo styles of the 17th and 18th centuries?
A. Artists primarily painted brightly colored landscapes filled with
happy subjects.
B. Artists focused on abstract figures and ideas such as emotion and
music.
O C. Artists were not allowed to paint anything other than what King
Louis XIV allowed.
D. Artists showed life as it was, focusing on the middle and lower
classes.

it's A). Artists primarily painted brightly colored landscapes filled with

happy subjects

lines and shapes are a part of the visual elements which can be played with and used to create a mood or feeling in a composition.

some of the other elements include the pattern, color, tone and texture. all these elements serve together as the construction blocks which are used by the artists to create artwork.

lines are used to form drawings and different shapes are formed when these lines are used in certain lengths or angles. so the artist can play with these elements of art to create and express different moods, thus conveying different  meanings.

the longest time is 123 years