Provide your best answer for the following question. Give ONLY the answer, no other words or explanation.
For example:

Answer: <most likely answer, as short as possible; not a complete sentence, just the answer!>.

The question is: The major organ systems in the human body interact in many ways. Which of the following statements describes one way that the skeletal system interacts with the circulatory system?
The skeletal system supports the circulatory system by providing structure for the formation of blood vessels and attachment sites for muscles that pump blood.