The answer is humor! It’s been shown it helps with all of those mentioned benefits :)
Contour Lines.
A perceived line that marks the edge of a figure as it curves back into space. Contour lines are created by the edges of things. Contour lines are lines that surround and define the edges of a subject, giving it shape and volume
I believe the correct answer is B. smooth.
Jean-Auguste-Dominique Ingres was a French neoclassical
painter and the acknowledged leader of the neoclassical school in France. He
was a talented painter and draftsman known for his smooth textures in paintings
and drawings. The texture was so smooth that even appeared to be illusionistic.
Either C or D.
Hope this helped!!