Answer:
There are no available options, but one thing is for sure, Jenna is making a mistake. Financially, Jenna is not making a wise decision. The greatest advantage of a retirement account is that your money can earn interests and grow tax free. It is really hard to match an opportunity like that specially for someone that doesn't have a lot of money.
E.g. you invest $1,000 and earn $500 but have to pay 20% in taxes, so your net return is $400. Jenna must think that it is not a significant difference, but in 40 years, it is a lot of money that you can save on an IRA account.
If she saved $1,000 in an IRA account and that money can earn 5% per year, by the time she is 62, she will have $1,000 x 1.05⁴⁰ = $7,040. Imagine if she deposits $1,000 each year during 40 years, she will have $1,000 x 120.800 (FV factor ordinary annuity, 5%, 40 periods) = $120,800. The more she can save, the more she will have once she retires.