Pet-Pro is a company that imports and markets pet food feeders to customers in Malaysia. The food feeder, which is called "Smart Feeder" allows pet owners to feed pre-determined quantities of food at pre-set time to their pets. The system has built in webcam and Wi-Fi technology, allowing the pet owners to watch their pets from anywhere and at any time. It also has a voice recording system that allows the pet owners to record their voice. The manager of Pet-Pro would like to find out pet lovers' perceived values of such a product and the likelihood of their buying it. The manager of Pet-Pro wants to understand the advantages and disadvantages of using the following survey modes: (a) in-home interview, (b) mall intercept, (c) online survey, (d) drop-off survey, and (c) CATI survey.