Which statement is true about field update actions from workflow rules and approval processes? Choose 2 answers

Universal Containers (UC) tracks Account locations in Zip Code, a custom text field with a validation rule to enforce proper formatting of the US ZIP+4 code for UC's orders.
What formula should the app builder create on Order to display only the first five digits of Zip Code from the parent Account?

The CRM Manager at Universal Containers has requested that a custom text field be converted to a picklist in order to promote better data hygiene.
Which two actions should be considered before changing the field type? (Choose two.)

What of the following are general types of actions available in Salesforce? (Choose four.)

Sales reps at Universal Containers use Salesforce on their mobile devices. They want a way to odd new contacts quickly and then follow up later to complete the additional Information necessary.
What mobile solution should an App Builder recommend?