What number do each of the shapes represent?
Water?
Square?
Heart?

Hey there,

Your question states: Which of the following accurately describes a cone?

Your correct answer would be A solid with one base and one face. This would be your answer because a cone has the base of which it stands on and also the face in to be considered the round part where you hold for your ice cream in the sense. 

To clarify your  

Hope this helps.

~Jurgen