Which instruction should the nurse include when teaching a client about self-administration of a bulk-forming laxative?

A. There is no specific need to avoid dairy products when taking bulk-forming laxatives. B. It is not necessary to remain upright for thirty minutes after taking a bulk-forming laxative. C. Bulk-forming laxatives should be taken with or shortly after meals and not necessarily one hour later to avoid interactions. D. Bulk-forming laxatives need to be taken with plenty of water to prevent choking and ensure they work effectively.