helimutt, sorry to be a pedant, but you never actually gave the answer. You asked a series of leading questions but never actually gave any info, but I'm sure you knew what you meant.
Spendid Cruiser is correct and if you follow his workings throught you would get answer d.
Think of it in basic terms.
You know where the island is in relation to the aircraft heading (60 deg left @ 45Nm),
you know heading which is 017T,
therefore the bearing of the island from the aircraft is (017 degT -60deg=)317 degT @ 45Nm,
so you can therefore work out where the aircraft is in relation to the island (the reciprocal) 317degT - 180= 137 degT @ 45 Nm)
Once you have the reciprocal, you can plot that from the known position of the island (on a chart) to give the aircraft position.
It might help you if you draw a diagram North up, starting with the aircraft in the middle, and build it up as you work it out.
Hope this helps.
StraightLevel.