A nurse is assisting with the care of a client who is on bedrest and is experiencing constipation. Which of the following interventions should the nurse implement?

A. Mineral oil may be used for constipation, but it is not the first-line intervention due to potential side effects, such as interference with absorption of fat-soluble vitamins. B. Increasing fluid intake helps soften stool and promote bowel motility, which is especially important for clients on bedrest, as immobility contributes to slowed gastrointestinal transit. C. A low-fiber diet would likely worsen constipation, as fiber adds bulk to stool and stimulates peristalsis. D. While cold fluids may have a mild stimulant effect, the overall priority is ensuring adequate hydration to prevent constipation.