Diagram 1 depicts a sealed plastic bottle that contains a hollow glass sphere and a steel ball. Diagram 2 depicts the same bottle once it has been shaken. Diagram 3 depicts the same bottle after it has been shaken again, until the shattered glass has broken into very small fragments. The mass of the bottle and its contents in diagram 1 is $m_1$. The mass of the bottle and its contents in diagram 2 is $m_2$. The mass of the bottle and its contents in diagram 3 is $m_3$. Which statement states the correct relationship between $m_1$, $m_2$ and $m_3$?
- A$m_1$ is equal to $m_2$ and $m_2$ is equal to $m_3$.
- B$m_1$ is greater than $m_2$ and $m_2$ is greater than $m_3$.
- C$m_1$ is less than $m_2$ and $m_2$ is greater than $m_3$.
- D$m_1$ is less than $m_2$ and $m_2$ is less than $m_3$.