Hey there!
The correct answer is option C. Love.
Abstract language can be a word that describes emotion.
Your answer is "Love" because . . .
You cannot feel a moon, you can only see it.
You cannot feel a stone with emotion, only touch or see it.
You cannot feel a bear with emotion either, you can only touch or see one.
Therefore, your answer is option "C."
Hope this helps you,
Have a wonderful day! :)