Paints,Charcoal, pastels, and are all types of A.PAINT that artist used to work with
The answer is B. ( They do not have depth )
Explanation: being back in time all the cave men had was ink so there would be no way they could have depth.
Hope this helped!!
im sorry but what do you mean by lines?
Answer:
Just say nothing and stare at them with a blank face.