I think what you're looking for is called "Personification"
Personification is where you give non-living objects human-ish looks or feelings, etc. For example take a look at Beauty and The Beast and its two main mascots the little clock guy and the candle. This is an example of personification. <span />
D It’s always delicious to eat popcorn
B Foot because for A C and D all you have to do is add an S. For foot however, you have to change the word itself to feet, thus making it irregular