How can a dashboard designer ensure the temperature data is easier to interpret on the dashboards?

An insurance company has many Einstein Analytics dashboards that show the influence of weather, such as atmospheric temperature, on customer cases. A service agent commented that it is sometimes difficult to determine, by looking at a dashboard, whether the temperature data is reported in degrees Fahrenheit or in degrees Celsius.

How can a dashboard designer ensure the temperature data is easier to interpret on the dashboards?
A . Add a text widget to the dashboard to indicate Fahrenheit or Celsius.
B . Use the XMD node in the dataflow to customize the number format of the field.
C . Customize the number format in the number widget properties of the dashboard.
D . In Explorer, go to the Fields menu and then customize the number format of the measure.

Answer: A