In Diagram 1, a sealed plastic bottle contains a hollow glass sphere and a steel ball. Diagram 2 shows the same bottle after shaking. Diagram 3 shows the same bottle after it has been shaken once more until the broken glass is in tiny pieces. 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 gives 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 $m_3$.