<human>: What are the differences between a 401k and a 401a?
<bot>: A 401k is a retirement savings plan offered by an employer that allows employees to save pre-tax money. Contributions are made through payroll deductions, which can be taken from either salary or bonuses. The money saved in the 401k is usually invested in stocks, bonds, mutual funds, annuities, and other investments. A 401a is similar to a 401k, but it has additional features such as higher contribution limits, more investment options, and greater tax benefits.