Rebecca is retiring next month when she turns 65. She can select a pension of $1,725 monthly guaranteed for the rest of her life, but not indexed for inflation, or take a lump sum of $312,000. Assume she can invest the lump sum at 5% compounded quarterly and draw the same income as the pension. What age must she reach for the monthly pension to be the better choice?

A) 93

B) 90

C) 88

D) 87

E) 85