Universal Container’s Salesforce Admin created a custom picklist field called Maximum Project Budget and selected the option to always require a value in this field to save the record. What will happen if he wants the picklist field to be invisible?

Answer options:

A.Picklist field can be invisible through field level security
B.Since the picklist field is required, you cannot make it invisible
C.Picklist fields ignore field level security
D.Picklist fields do not have the option to always require a value in the field to save the record

Correct Answer: B 
Since the Salesforce Admin has selected the option to always require a value in the field to save the record, this field will be a required field and field level security cannot be applied. 
Option A is incorrect because the field needs to be visible if it is required on the page layout. 
Option C is incorrect because picklist fields don’t ignore field level security. 
Option D is incorrect because picklist fields have the option to always require a value in the field to save the record. 
Reference: 

https://help.salesforce.com/articleView?id=admin_fls.htm&type=5