9. (3 points) The accumulation function for an account for the next 5 years is a(t) = {- +t+1. Find the value at time t = 5 of $100 deposited at t = 2. (A) $442.86 (B) $462.86 (C) $472.86 (D) $501.32 (E) $512.86 (F) $1300