A nurse is teaching a client who has diabetes mellitus and a new prescription for a combination of lispro insulin and NPH insulin. Which of the following statements by the client indicates an understanding of the teaching?

A. NPH insulin should be drawn up second, after lispro insulin, to prevent contamination of the shorter-acting insulin. B. Lispro insulin (short-acting) and NPH insulin (intermediate-acting) can be mixed in one syringe, with the lispro insulin drawn first. C. The client should eat immediately after administering lispro insulin (a rapid-acting insulin), not within 1 hour. D. Lispro insulin is clear and should not be cloudy.