Correct Answer: pane

Solution : The right choice is the third option .

In this context, the word pane is the correct choice, which refers to a flat, usually rectangular piece of glass, such as what you might find in a window. So, the sentence would mean that she smashed a flat piece of glass with the metal vase.

The meanings of the other words are:

• Pion : This is a subatomic particle.
• Pawn : This refers to a chess piece or can be used in a broader sense to mean a person used by others for his own purposes.
• Pain : This refers to physical or emotional discomfort or suffering.