Painting of a women with a small smile. in the background are water, trees, rocks, and roadways. In Leonardo da Vinci's painting "The Mona Lisa," featuring a woman with a slight smile against a backdrop of water, trees, rocks, and roadways, how does the artwork illustrate humanism?
a. It highlights the significance of elements from nature.
b. It suggests the initiation of patronage.
c. It conveys a subtle yet unmistakable religious theme.
d. It celebrates the intricate details of an individual person.