Liu files a suit against Macro Sales, Inc., in a New Jersey state court based on a Web site through which New Jersey residents can do business with Macro. The court will most likely exercise jurisdiction over Macro if the interactivity of the site is seen as

A substantial enough connection with the state.

Explanation:

Since in the question it is mentioned that the Liu filed a suit for Macro sales in a state court that depends upon a website in order to do a business between the New jersey residents and macro. The court also exercise the jurisdication above Macro as if the site interactivity i.e output is depend upon the inputs done seen as sufficient connection with the state

The same is to be considered

answer; whoever is willing and able to pay the price;

answer the amount a seller is paid minus the cost of production;