What is the purpose of the following function: $=$CALCULATE$([$Profit$],$Territories$[$Country$]=$"USA"$)$

A$.$

Calculates a measure named "Profit" across the entire Territories table

B$.$

Sums the "Profit" column for rows where Country $=$ "USA"

C$.$

Creates a new column named "Profit" which is calculated for all rows where Country $=$ "USA"

D$.$

Evaluates the "Profit" measure for rows where Country $=$ "USA" in the Territories table