Consider three masses $m_1, m_2$ and $m_3$ $(m_1 > m_2 > m_3)$ that are at rest on an inclined plane as shown in the figure. The angle of inclination $(\theta)$ of the plane is gradually increased until the masses just begin to slide. (Assume the coefficient of static friction between the masses and the surface is constant). Then,which of the following statements is correct?

• A
  $m_3$ begins to slide at a higher inclination angle than $m_1$ and $m_2$.
• B
  $m_3$ begins to slide at a lower inclination angle than $m_1$ and $m_2$.
• C
  $m_1, m_2$ and $m_3$ begin to slide at the same inclination angle.
• D
  $m_2$ begins to slide at a higher inclination angle than $m_1$ and $m_3$.