Which of the following statements about e$-$commerce, in the United States in $2017,$ is not true?Group of answer choicesDesktop advertising still accounts for almost $70\%$ of all digital advertising spending.On$-$demand service firms are fueling the growth of local e$-$commerce.Social e$-$commerce generates more revenue than mobile e$-$commerce.Growth rates for retail e$-$commerce are higher in Europe than in the United States.