Enable multi-currency feature

Question

I've found around the network the quizlet website with some flashcard for salesforce: very promising for my 401 certification.

You can find it here: http://quizlet.com/47646837/flashcards

But I'm stucking in this question:

How do you enable the multi Currency Feature in Salesforce.com?

1. Enable it from the Sidebar componenet of Setup
2. Enable it from the profiles
3. Enable it from going in to the Currency Tab
4. Enable it by raising a case with salesforce.com

I've searched in the documentation and I've found:

In Setup, go to Company Profile | Company Information and click Edit. That let me think about the right answer is 2.

BUT! The correct answer in Quizlet is: 4.

Am I looking in the wrong documentation page?

Answer 1

It is #4 - see SFDC Help here

Contact Salesforce to request enablement. Be prepared to provide the following information.

The organization ID (production or sandbox)

Confirmation that you understand that your current currency locale will become the default currency stamp for current and future records (USD, EUR, GBP, and so on)

Confirmation that you understand that multiple currencies can’t be disabled once enabled

Confirmation that you are a system administrator authorized on behalf of your organization to request multi-currency enablement and that you consent to the lockout of this organization for a certain period of time, depending on your organization’s data usage volume