Hey there!
The answer will be B. When Mariah's mother gives her a guitar stand, the reader knows that Mariah has sold her guitar.
Explanation:
Well, we don't exactly know if Mariah will give the hammock to her mom, dad, grandparents, friends etc. That's not quite clear just after reading the 1st line. You only understand it after the garden shop's owner says it. But, you know that Mariah's mom will give her the guitar stand as she plays the guitar in this text. But, here there's dramatic irony used as know Mariah has sold her guitar & the guitar stand is no longer useful.
Hope it helps ya!
