Which security solution should be used to protect this data?

A nonprofit customer must conflict and store its clients’ government-issued ID number. The consultant has set up a custom text field for the ID number .

Which security solution should be used to protect this data?
A . Restrict visibility by removing it from the page layout and utilizing role hierarchy to prevent users from accessing that field except for the staff who need to interact with the government ID data
B . Encrypt the government ID field with Classic Encryption for Custom Fields and grant
View Encrypted Data permission only to those users who have to interact with the data
C . Turn on two-factor authentication for the staff members who need to collect and use the
government ID number field data
D . Set the org wide default on Contacts to Private so only the user who owns the Contact records can access it.

Answer: B