Which of the following is true about CCC$?$ Check all that apply.

It is related to the proportion of variance in the data accounted for by the clusters.

A negative value is impossible.

It is related to the proportion of matching values in a column against all columns.

It is used to tell the goodness of fit of clustering.

It stands for Cubic Clustering Criterion.

It stands for Complete Clustering Criterion.

A value greater than two is highly desirable.