A modern statement of Charles's law is: When the pressure on a sample
of a dry gas is held constant, the Kelvin temperature and the volume will be
directly related.
Choice 'D' looks like the closest one.
While I was answering this question, I discovered something very useful:
I went to the internet, and opened my favorite search engine. (I can't tell
you the name of it on here, but it rhymes with Ploogl.) Then I just typed
'Charles Law' into the little window, and a lot of stuff popped up and told
me everything I wanted to know about it, and a lot more. You could try it.