In terms of Big Data and Data Mining, what is the correct definition of variety?

Variety is the speed at which data enters an environment. Big data tends to have high variety data that must be analyzed quickly.

Variety refers to the accuracy data. Big data sets may have inaccuracies and lapses in data quality.

Variety refers to the different types of data. Big Data tends to have many different types of data.

Variety is the amount of data in a data set. Big Data tends to have large amounts of data.