Because the interest is credited at the end of each year and left in the account, the investor earns compound interest. The correct approach is to apply the compound interest formula: future value equals principal multiplied by one plus the annual rate raised to the number of years. Here, the principal is €1,000, the annual interest rate is 3% or 0.03, and the term is 5 years. The calculation is €1,000 × 1.03^5. Step-by-step, 1.03^2 is 1.0609, 1.03^4 is 1.0609^2 = 1.12550881, and multiplying once more by 1.03 gives 1.1592740743. Multiplying by €1,000 gives €1,159.2740743, which rounds to €1,159.27. The main exam trap is using simple interest, which would add €30 each year and give €1,150 after five years, but that ignores interest-on-interest. Therefore, the correct option is €1,159.27.