Hey there!
"Something that has air molecules" is NOT required for current flow through a conductor.
Your answer is option "D."
Hope this helps you.
Have a great day!
self harm, emotional reck, eating to much or to less, syisidal thoughts, and sleeping less
1-matches up with first definition
2- matches with second definition
3-matches with fourth definition
4-matches with third definition
Hope this is helpful!! :)