Select the correct statements about how the global e$-$commerce landscape is differentiated from the e$-$commerce landscape in the United States.

E$-$commerce sales in the United Kingdom e$-$commerce sales totaled over $$142$ billion dollars.

E$-$commerce revenue in Japan totaled over $$400$ billion dollars in $2019.$

In the United States e$-$commerce sales are expected to reach $$600$ billion dollars in $2020.$

Global retail e$-$commerce sales in $2020$ are expected to be over $$4\mathrm{.}2$ trillion dollars.