What is another name for an object line? A.
solid line
B.
section line
C.
hidden line
D.
center line

A. Solid Line

Explanation:

"A visible line, or object line is a thick continuous line, used to outline the visible edges or contours of an object. A hidden line, also known as a hidden object line is a medium weight line, made of short dashes about 1/8” long with 1/16”gaps, to show edges, surfaces and corners which cannot be seen (Open Oregon)."

It doesn't directly say that, but that's what I'm inferring from its context.

Okay, I hope this helps in some way! Have a wonderful day! :)

"prior to 1910, these new artists were called neo-impressionists, and they believed that "modern paris" was the proper subject for their paintings."

this is the text provided by the program, disregard other answers, as they are confusing and based on loose knowledge of the subject.   : )