Beans Coffee & Cocoa Company makes and sells a chocolate-flavored coffee drink under the name "CoCoCafe." Darkroast Java, Inc., later markets a similar drink under the name "KoKoKafe." This is most likely:

Answer: Trademark infringement

Explanation: In simple words, trade infringement is the situation when someone uses others trademark rights for economic benefits in an unauthorized way.

In the given case, Darkroast stole the unique product of beans coffe company and sold it in the market by other name. Also, Darkroast did this without the permission from the company having the trademark rights.

Thus, we can conclude that this is an example of trade infringement.