Which of the Following Will Not Create Minimum Contacts in a State

Which of the following will not create minimum contacts in a state sufficient to find personal jurisdiction on an out-of-state defendant?

A) maintenance of a web site that provides information about a company's products and that provides an address or number that a customer can contact to obtain an order form to purchase products directly from the company
B) a company maintains an office in the forum state that is manned once a week by employees
C) a company sends sales personnel into the forum state to conduct business but does not maintain an office within the forum state
D) a company maintains no physical office within a state and does not send sales personnel in to conduct business but they target advertise in the forum state providing special products and discounts for the forum state's residents