Which of the following best describes how Diego Velázquez illuminated the figures and created a sense of depth in Las Meninas?
A. Velazquez depicted natural light coming from a window
B. Velazquez experimented with Caravaggio's tenebrism technique
C. Velazquez used the sfumato technique to create a smoky, hazy effect
D. Velazquez set up a strong spotlight in front of the figures