Answer:
The Correct option is d.The risk is Mary's to the extent of $400
Step-by-step explanation:
Based on the information given the person Who is liable is MARY reason been that we were told that MARY did not inspect the dress when she received it to check for any nonconformity and Secondly we were told that she calls the designer in which she sent back the dress BUT it was lost in the mail after her designer sents the wrong size to her which means that Mary's insurance would cover $400 of the loss.
Therefore The risk is MARY'S to the extent of the amount of $400