Which of the following is true of a measure in Power Pivot?
a. Measures are basically the same as calculated fields, which have been available for Excel pivot tables for many years, so they don't add much new functionality.
b. Measures created by DAX are always listed in the PivotTable Fields pane, so that they can be used just like any other fields in the Values area of a pivot table.
c. A measure is always a summarization by summing.
d. A measure can be used to fill a column in a table of a Data Model.