I know the answer is a but how we get it ??

Suppose an investor buys a UK bond with a coupon rate of 8% at its price of euro 990. The bond's face value is euro 1,000. If the British pound depreciates by 5%, at what end-of-year selling price of this bond will the dollar return on the bond Just equal 10%? a) 1062 b) 1100 c) 1000 d) 1300