What is a true statement about a 401k deduction?

It is a contribution to the workers retirement account
It is subtracted from the gross income resulting in lower taxes
It is a mandatory deduction
It is an involuntary deduction
A and B

A and B are true statements about a 401k deduction.

The correct answer is option "A and B." A true statement about a 401k deduction is that it is a contribution to the worker's retirement account, and it is subtracted from the gross income resulting in lower taxes. It is not a mandatory or involuntary deduction, as participation in a 401k plan is generally voluntary for employees.