To determine which step the artist clearly used when drawing the image, we would need more context about the image itself. However, I can provide guidance on each option:
A. Two vanishing points - This option suggests that the artist used a two-point perspective, which typically creates a more dynamic and realistic depiction of space.
B. Only orthogonal lines - This option implies that the artist used strict orthogonal lines to maintain perspective, which is essential for creating depth in a drawing.
C. Imagery in the background larger than in foreground - This option would typically be incorrect, as objects closer to the viewer should appear larger than those farther away.
D. Imagery in the foreground lighter than in the background - This option refers to a technique often used to convey depth, where lighter colors in the foreground might create an atmospheric perspective effect, although it's generally the opposite (foregroun imagery being darker).
If your image is employing perspective techniques and has depth, options A or B might be more applicable. If there is an atmospheric effect present, option D could apply. C is likely incorrect.
Without seeing the image, it’s difficult to choose the correct answer confidently!