Given below are two statements:
$Statement$ $I$: Most of the mass of the atom and all its positive charge are concentrated in a tiny nucleus and the electrons revolve around it,is Rutherford's model.
$Statement$ $II$: An atom is a spherical cloud of positive charges with electrons embedded in it,is a special case of Rutherford's model.
In the light of the above statements,choose the most appropriate from the options given below.

• A
  Both statement $I$ and statement $II$ are false.
• B
  Statement $I$ is false but statement $II$ is true.
• C
  Statement $I$ is true but statement $II$ is false.
• D
  Both statement $I$ and statement $II$ are true.