An analyst adds a Day dimension and a Signup Count measure to an Explore to show the number of new users added per day. The analyst wants to add a metric that increases by the number of new users per day, on a rolling basis.
How should that metric be calculated?
A. Add a Sum measure to the Explore and re-run the query.
B. Add a table calculation that calls running_portal (${users.signup_count})
C. Add a custom measure of type: running_total
D. Add a table calculation that calls ${users.signup_count:total}