Ursa Major Solar recently enabled the multiple currencies feature. As a result, which currency will be used as the foundation for all currency conversion rates?

The corporate currency is the default currency of the organization and serves as the primary currency for all currency conversion rates once multiple currencies are enabled, acting as the foundation for exchange rate calculations.

There is no 'Active currency' concept in Salesforce; all defined currencies are considered active if they have exchange rates.

Personal currency is the currency a user selects as their default for displaying amounts, but it does not serve as the foundation for conversion rates; conversions still occur relative to the corporate currency.

Record currency is the currency specified on a particular record (e.g., an Opportunity), but it is converted based on the corporate currency, not itself the foundation for conversion rates.