During year 2018, Rebekah, a 20-year-old full-time student, earned $3,400 during the year and was not eligible to participate in an employer-sponsored retirement plan. The general limit for deductible contributions during 2018 is $5,500. How much of a tax-deductible contribution can she make to an IRA?

$0 (Full-time students are not allowed to participate in IRAs)
$3,400
$5,500
$8,900