I)Signals from connected refrigerators can inform when to deliver food to a customer's home. II)Signals from a debit card can inform when to offer a travel rewards credit card to a customer who is planning a vacation. III)Connected cars can provide clues about when a customer needs an auto loan. IV)B and C [bg_collapse view="button-orange" color="#4a4949" expand_text="Show Answers" collapse_text="Close Answer" ] IV)B and C [/bg_collapse]