Respuesta :

1= form and light 
2=depth

refer to these websites for more info on both illusions 
1- thevirtualinstructor.com/hatchingcrosshatching.html
2- www.udel.edu/artfoundations/beg_paintingtechniques.html

Answer:

D. (1) values; (2) depth

Explanation:

Just did it on Edg and got a 100% hope this helps!