Answer: Channel stuffing
Step-by-step explanation: In simple words, channel stuffing refers to the deceitful business practice by the organisations in which it shows wrong picture of its sales and earnings by sending more products to the distribution channel which they are able to send.
In the given case, Chantel has been sending their distributors more units than they asked for with the objective of inflating the sales number in the records.
Hence from the above we can conclude that the correct option is C.