 Complete the following phrase:  French businesses are slowly introducing the Black Friday custom into the market. Discounts of up to 85 were given by retailing giants such as Apple and Amazon in 2014. French electronics retailers such as FNAC and Auchan advertised deals online, while Darty also took part in this once-a-year monster sale. Retailers favored the very American term Black Friday to Vendredi noir in their advertisements. In 2016, because of the 