It's B.
As you go up, the air thins out, meaning it is less dense. Since there are less molecules that can transfer heat, the temperature is lower.
A is wrong because a folder can have any name.
B is wrong because not all folders of a web server are exposed to the outside, only all folders below the document root.
C sounds good
D is wrong because an image can reside somewhere else as long as you specify the absolute or relative path to it
Answer:
it's all up to personal preference some different ones have upsides and downsides but it's more of what you feel is best
