In HCI, Users May Have Trust on Either an Underlying

Multiple Choice

In HCI, users may have trust on either an underlying information technology, or an institution or other people that they interact with via information technology. Which of the following examples show a user's trust on an underlying information technology?

A) A customer has trust with an online store
B) A user is willing to use email as a method to communicate with friends;
C) A user purchased a book online following suggestions from his/her relatives;
D) A user receives an email from a friend saying that Skype is a good Internet telephony tool, and starts using Skype to make phone calls;
E) A user always had good experience with a home appliance store, and starts doing purchases on the store's Web site recently.