Which of the following curves represents the variation of magnetic moment $(M)$ with temperature $(T)$ for a ferromagnetic material?

• A
  $A$ linear decrease of $M$ with $T$ reaching zero at the Curie temperature.

  
• B
  $A$ hyperbolic decrease of $M$ with $T$.

  
• C
  $A$ non-linear decrease of $M$ with $T$ reaching zero at the Curie temperature.

  
• D
  $A$ constant value of $M$ with $T$.