The proverb, 'Cut your coat according to your cloth' means 'Undertake only what you have the money or ability to do and no more'. A person who cuts for a coat without considering the available cloth could end up wasting the cloth. This proverb instructs one to live within his/ her means and resources. Hence, the phrase, 'to your cloth' as given in option D is the correct answer.
The other phrases given in options A, B and C do not complete the proverb. Hence, these options are incorrect.