The mechanism of the reaction $2NO_2 + F_2 \to 2NO_2F$ is given by:
$(i)$ $NO_2 \xrightarrow{slow} NO + O$
$(ii)$ $F_2 + O + NO \xrightarrow{fast} NO_2F + F$
$(iii)$ $F + NO_2 \xrightarrow{fast} NO_2F$
Select the correct statement.

• A
  The reaction is of $3^{rd}$ order.
• B
  The molecularity of the reaction is the sum of the molecularities of all steps.
• C
  The reaction is zero order with respect to $F_2$.
• D
  The half-life of the reaction depends upon the initial concentration of $NO_2$.