Answer:
"Proud as a Peacock" was the advertising campaign used by the NBC television and radio networks from 1979-1981. The campaign was used to promote NBC's programming and to introduce the "Proud N", a logo that would be used until 1986.
Explanation:
The correct answer is B. box, because after the word "box" she is describing what she found in it. They are two different things, so you need a comma after box.
The answer is A. It is the one that is punctuated correctly.