Answer:
Points B, C, and D are on line n
Step-by-step explanation:
We know that that plane is a two dimensional quantity while line is a one dimensional quantity. A plane can have length and width like rectangle but line will have only length like distance between two points.
From given picture we can clearly see that n is a straight line as it has arrows at the both end points. points B, C and D all of them lie on the line n.
Hence correct choice will be "Points B, C, and D are on line n"
