Okay, here we have this:
Considering the provided box-plot, we are going to identify the requested quartile values Q1 and Q3, so we obtain the following:
So let's remember that where the first box begins in a box plot from left to right corresponds to the value of Q1 and where the second box ends corresponds to the value of Q3, therefore we have:
Q1=-7 and Q3=2
Then the correct answer is the third option.
