Please answer within 15-30 min. (k)

JetFlix rents DVDs of popular movies to customers. Customers visit its website, request the movie they want to see, and then wait for the DVD to arrive by mail. When a customers requests a movie that is not available (Le., all copies of that DVD are already rented out). the request is put on hold until a DVD is returned. Movie "Gulp Fiction" receives an average of 1.3 Customer requests per day, and the average duration for which a DVD is out on a rental is 4 days (this includes shipping time and time with the customer). If Jet Flex keeps 7 DVDs of Gulp Fiction, what is the average duration a request for this movie is kept on hold? (Assume CVa = CVp = 1) O 5.10 days O 0.91 days O 8.38 days O 2.52 days