Kathy is 60 years of age and self-employed. During 2018 she reported $116,000 of revenues and $43,200 of expenses relating to her self- employment activities. If Kathy has no other retirement accounts in her name, what is the maximum amount she can contribute to a simplified employee pension (SEP) IRA for 2018? (Round your final answer to the nearest whole number) Multiple Choice $13,531 O $17,168 $17:168 O 571000 S71.600. $56.600