To answer this question, you need to understand the informal terms related to retiring from playing.
Option A) Throw in the towel - This option is incorrect because "throw in the towel" is an idiom that means giving up or surrendering, typically in a competition or a difficult situation.
Option B) Nip it in the bud - This option is incorrect because "nip it in the bud" is an idiom that means to stop something at an early stage or prevent it from developing further.
Option C) Hang up your boots - This option is correct because "hang up your boots" is an informal term used to refer to retiring from playing a sport, especially in the context of football (soccer).
Option D) Go and grow daisies - This option is incorrect because "go and grow daisies" is not a recognized informal term for retiring from playing.
The correct answer is C) Hang up your boots. This option is correct because it is an informal term used specifically for retiring from playing a sport.