. A whole life annuity is sold to (60) with the following annual benefits, first payment at age 60: $55,000 for the first 5 years $40,000 for the next 10 years $60,000 thereafter Using the "stacking" technique, which one of the following equations would give the correct net single premium for this annuity? . (1) 60,000 60 + 40,000 260:15 + 55,000 60:51 (11) 55,000 2.0:57 - 15,000 60:10 + 5,000 do (III) 60,000 co - 20,000 .0:15] + 15,000 360:51 (IV) 55,000 0:51 +40,000 :10 + 60,000 ys O AM B. (111) C. O D. (10