After sitting on the floor for a few minutes, Mr. Matthew is helped to a standing position by the nurse and the UAP. He is able to walk to the bathroom and back to bed without further problems. After Mr. Matthew is safely back in bed, he asks the nurse, "What caused me to feel faint?" How should the nurse respond to Mr. Matthews?
A. "That is a good question. Sometimes these things just happen."
B. "That is a good question. We need to ask the healthcare provider to explain it to you."
C. "You are deficient of energy from the lack of nutrition for many days."
D. "You probably experienced postural hypotension. Let me explain."