12. During the year endi of any RPP contribu from royalties of $55. university. She has no Un e vear ending December 31, 2018, Joyce Lee has employment income before the deduction op contributions of $40,123, a net rental loss of $15,789, interest income of $6,033, and income cities of $55. The royalties were on a book written by Mrs. Lee in her undergraduate years at She has no Unused RRSP Deduction Room from previous years. ot a member of a Registered Pension Plan during 2018. She has contributed $4,390 to her d's Registered Retirement Savings Plan in 2019. Please calculate the maximum deductible 2019 Registered Retirement Savings Plan contribution to a plan in her name. Please show your calculation in nearest dollar to receive full marks. (6 marks)