At the beginning of Year 1, Jimbo Company purchased a portfolio of trading securities for $20. At the end of Year 1, the portfolio had a value of $15. In the middle of Year 2, the entire portfolio is sold for $24. Jimbo Company had no other securities during Years 1 and 2. What is the total amount of gain/loss (both realized and unrealized) reported by Jimbo for Year 2?

a, $4

b. $5

c. $13

D. none of the above

E. $9