Among the five V's in the concept of big data，Volume refers to ___.

A、Thehugeamountofdataincreaseswithahighspeedincertaintime.;
B、Thesortsofdataaregreatlydifferent;
C、Theamountofdatalargelyincreasesannually.;
D、Thequalityofthesedatamustbetrue.