Is the sub-story a reasonable "split" for the user story in the following scenario? Which option correctly identifies why or why not? User story: As a first-time user, I want to purchase organic jams as gifts to send to friends.
Sub-story: As a first-time user, I want to add organic jams to my shopping cart.

O It is; the first step in making an online purchase is to add an item to the "shopping cart."
O It is; the user defines how and why he or she wants to purchase organic jams.
O It is not; what types of jams the user wants to buy needs to be specified.
O It is not; the cost of jams the user wants to buy needs to be specified.​