A company wants to invite customers to chatter, what options can a customerhave?

Which setting is available to customize the salesforce1 mobile app for branding ? Select 3

A new field has been added to the Applicant object that is part of an unmanaged package. A recruiter ran the Position with or without Applicants report and noticed that the new field was missing as an option to add as a column.
How should an app builder troubleshoot this issue?

An app builder has been asked to provide users a way to identify a contact's "preferred contact method" directly on the contact record. users need to be able to identify whether a phone number or an email, is the contact's preferred communication method. Which field type will allow the app builder to accomplish this with the fewest fields possible?

What is true about social accounts, contacts, and leads?