13. Characteristics of a 401(k) plan include which of the following? (LO 16-1)

a. Employers are required to match a minimum of 3% of salary for all full-time employees.

b. You can deposit a maximum of $22,000 if you are under age 50.

c. You can invest only in mutual funds.

d. You can have either a traditional 401(k) or a Roth 401(k).