Answer:
It is a good way to protect your artwork.
It was initially part of the frame and mat of wood.
During the renaissance, it was made out of paper.
At the beginning of the 19th century, cardboard was invented. Later on, mats for artwork were mass produced out of cardboard.
Nowadays, there is a digital mat that can be used by professional designers.
Explanation:
Hope this helps!
I'd say that the type of context clue that helps you understand the meaning of the word repining is B. restatement.
If the word is in the middle of the poem, you wouldn't want an explanation or an example, but its synonym in order to understand what that particular word means. At least that is what I believe, I'm sorry if you get this answer wrong. :/
