Mini$-$Case B: $(4$ marks$)$ Complete the following sentences. $(4$ marks for $\mathrm{.}5$ marks each$)$ a$)$ We are April $3,2025,$ Aisha turns $25$ years old on May $30,2025.$ When she was $18$ years old, she opened a $\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_$ that allowed her to contribute annually to this investment account. She understands that she will never pay taxes on any investment earnings or on amounts that she withdraws. Each January $1$st$,$ she makes the maximum contribution, except in the year she turned $18,$ when she made that year's contribution on May $30,2018.$ To date Aisha has contributed a total of $$\_\_\_\_\_\_\_\_\_\_$ to this account. b$)$ Since Aisha started working, she has also contributed the maximum amount to her $\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_.$ These contributions allow her to claim a $\_\_\_\_\_\_\_\_\_\_\_$ on her personal income tax return. However, if she withdraws from this account, she would be required to report the amount withdrawn on her personal income tax return and pay taxes unless she qualifies under two specific programs: $\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_$and the$\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_.$ Withdrawals for these two plans are not taxable, provided they are repaid according to the required schedule. c$)$ When Aisha turns $71,$ she must convert her $\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_$ into a $\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_$ by December $31$st of that year. Once converted, she will be required to withdraw a minimum amount each year, which is considered taxable income.