Which of the Following Is True of Multichannel Marketing

Which of the following is true of multichannel marketing?

A) Customers are offered information,goods,services,and/or support through one or more synchronized channels.
B) It becomes difficult to identify which channel is responsible for discrepancies in the inventory.
C) Customer products are sold through distribution channels.
D) Multichannel marketing creates a main channel that acts as the sale and profit center.