Kristoff tries veggie chips at a sampling station at a trade show. During his next shopping trip at his locally owned grocery store, Kristoff asks the manager if she carries the tasty chips. When she replies negatively, Kristoff raves about them. A few weeks later, at that same store, Kristoff notices an endcap filled with bags of veggie chips. This type of marketing interaction is termed a

discrete transaction.

power exchange.

pull strategy.

push strategy.