|Question 8Verbal

Source Texts

Text
When used to examine paintings, nonvisible light, such as ultraviolet, can penetrate the painting's visible surface and give art historians important insights into an artist's process. For example, imaging the underlayers of Artemisia Gentileschi's Saint Catherine of Alexandria (1618-20) revealed that Gentileschi originally painted her own face on the figure. Imaging can also provide insights into a painter's choice of materials, showing, for example, whether a painter used titanium oxide pigment in a given work.
According to the text, why are the images beneath the surface of a painting valuable to art historians?
They can show how long a painting took to complete.
A
They can indicate whether a painting is damaged.
B
They can be used to prove which artist painted a given work.
C
They can reveal aspects of an artist's decision-making.
D