4. (6 points) A payment SR is invested at the beginning of each half-year into an annuity due Interest is 4% APR compounding semiannually. Calculate the smallest whole number of years for which the future value of the annuity due will reach the amount of $150R. (E) 36 years (A) 25 years (F) 37 years (B) 33 years (G) 41 years (C) 34 years (D) 35 years (H) None of the above