16.
Your Answer is
Correct Answer is F
Explanation
This question examines sentence structure and adjective usage.
G item: an Olympic gold medal for... as the object of win, for the whole, so there is no sign between medal and for.
Item H: an Olympic gold medal for...is the object of win, which is the whole, so there is no sign between medal and for.
Item J: Olympic and gold are two adjectives that modify the medal and cannot change positions, so there is no symbol in the middle.