Answer: B. (Leah did not have to provide collateral.)
Can u just post the whole question or elaborate further
-66, -52, - 48, -42
If you can have 2 medians (since there is only 4 numbers), it is -52 and -48
If you can only have one,then i believe you choose -50, because it is in between -48 and -52
hope this helps
This answer to this question is 1150 km