Which of the following fields CAN NOT be a controlling field for Dependent Picklists?

Universal Containers has ten sales teams, each specified with their own role. Sales management has requested that all sales team users have read only access to all Leads owned by other sales team roles.
Which option will allow for this level of record sharing?

Northern Trail Outfitters (NTO) is concerned that employees are logging into Salesforce from their home computers. To prevent this. NTO wants to limit Salesforce access only to computers located within the company headquarters.
Which security settings should an Administrator use to ensure that users only login while present in the company office?

Salesforce is which of the following:

If using Customizable forecasting there is a seperate forecast role hierarchy