The following mechanism has been proposed for the gas-phase reaction of chloroform (CHCl3) and chlorine:
1) Cl2 ⇔ 2 Cl (fast, reversible)
2) Cl + CHCl3 → HCl + CCl3 (slow)
3) Cl + CCl3 → CCl4 (fast)
What rate law does this mechanism predict? Choose from the list below and enter the letters for all the terms needed in the rate law. (So for a rate law of k[Cl2] enter AB, and for a rate law of k[Cl2][CHCl3] enter ABD.)
A. k G. [CHCl3]1/2 M. [HCl]2
B. Cl2 H. [CCl3]1/2 N. [Cl2]2
C. [Cl] I. [HCl]1/2 O. [Cl]2
D. [CHCl3] J. [Cl2]1/2 P. [CHCl3]2
E. [CCl3] K. [Cl]1/2
F. [HCl] L. [CCl3]2

Question

The following mechanism has been proposed for the gas-phase reaction of chloroform (CHCl3) and chlorine: 
1) Cl2 ⇔ 2 Cl (fast, reversible) 
2) Cl + CHCl3 → HCl + CCl3 (slow) 
3) Cl + CCl3 → CCl4 (fast) 
What rate law does this mechanism predict? Choose from the list below and enter the letters for all the terms needed in the rate law. (So for a rate law of k[Cl2] enter AB, and for a rate law of k[Cl2][CHCl3] enter ABD.) 
A. k	G. [CHCl3]1/2	M. [HCl]2
B. Cl2	H. [CCl3]1/2	N. [Cl2]2
C. [Cl]	I. [HCl]1/2	O. [Cl]2
D. [CHCl3]	J. [Cl2]1/2	P. [CHCl3]2
E. [CCl3]	K. [Cl]1/2	
F. [HCl]	L. [CCl3]2