Your friends know that you understand a lot about computers, both the technical details of how they operate as well as information about software. lately, with all of the concerns about copyright infringement, friends have started to ask you categories of application software and what each kind permits. you tell your friends that all of the following are true except:. a) customers using freeware can personalize the software to meet their needs. b) anyone can copy or distribute public-domain software to others at no cost. c) some shareware programs become useless if no payment is sent after the trial period ends. d) a copyright gives creators of original work exclusive rights to duplicate, publish, and sell their materials.