D. Mom should be capitalized because I believe it is a proper noun.
You can replace the word mom with a person's name. That is not always the case however. For example, I called my mom on my.... If you capitalized mom in this sentence and put a name then it wouldn't make sense because the word my was added. Hopefully this helps and makes sense. Good luck!!!
I think :
Most male deer's antlers are shed
Answer:
. That vase could not contain one of your feet even, and how could your whole body go in? I cannot believe it unless I see you do the thing."
Explanation: