Fact Pattern 15-1 CallTalk Corporation, a Smartphone and Phone-Time Seller, Chooses to Use

Fact Pattern 15-1
CallTalk Corporation, a smartphone and phone-time seller, chooses to use and register "calltalk" as its second-level domain.Later, CallTalk's less successful competitor, CellTalk Company, chooses to use and register "caltalk" (an intentional misspelling of "calltalk") as its second-level domain.Still later, Call&Talk, Inc., uses the domain name "callltalk" (also a deliberate misspelling of "calltalk") without CallTalk's authorization, to sell pornographic phone conversations.
-Refer to Fact Pattern 15-1.CallTalk wants to sue Call&Talk for its unauthorized use of the domain name "callltalk." Before bringing the suit, CallTalk has to ask the court for a subpoena to discover

A) the true identity of the owner of the unauthorized site.
B) the amount of the profits of the unauthorized site.
C) the estimated costs of the court proceedings and discovery.
D) all of the registered variations of the name "calltalk."