The correct option is
E To save for future use
Option E is the correct answer because 'lay by' means to keep or save something so that you can use it in the future.
The other options are incorrect because 'extend support' means to provide and continue the support, 'be helpful' means giving or ready to give help, 'be arrogant' means to be unpleasantly proud and behaving as if you are more important than, or know more than, other people and 'cringe' means to bend one's head and body in fear or apprehension or in a servile manner; to squirm.