Identify a range of interventions that can reduce the risk of skin breakdown and pressure sores

Certain interventions to reduce the risk of skin breakdown or pressure ulcers are determined according to risk factors. Such includes the assessment of individual patients depending on the case. Generally, patients that are prone to pressure sores are being watched and assessed from time to time. Most of these patients are bedridden or having mobility problems.
Range of Interventions given to reduce the risk are:

1. Follow a specific turning or repositioning schedule for the client. Usually, patients are being turned every two hours. This is also to encourage proper circulation of the body. Take note that mobility is case to case basis. 
2. Keep the skin integrity intact. Always keep the skin clean and dry to avoid acquiring wounds that would lead to infection. The skin acts as the first line of defense of the body against harmful microorganisms.
3. Focus on the bony parts of the body. Usually, this is where pressure sores starts and is the most prone part of the body to acquire pressure ulcers. Make sure that these parts are being mobilized often.
4. Keep the bed clean and fix wrinkled bed sheets. A smooth surface reduces chances of pressure sores.
5. Good and well-balanced nutritional intake should also be considered.

The correct answer to this question would be c

Ibelieve is d but i’m not 100% sure