Classify the Following Reaction Steps as Initiation,propagation or Termination

Classify the following reaction steps as initiation,propagation or termination.
A: Br-Br → 2 Br∙
B: H₃CH₂C∙ + Br∙ → CH₃CH₂Br
C: 2 H₃CH₂C∙ → CH₃CH₂CH₂CH₃

A) Step A is initiation and steps B and C are propagation
B) Steps A and B are initiation and step C is termination
C) Step A is initiation,step B is termination and step C is propagation
D) Step A is initiation,step B is propagation and step C is termination
E) Step A is initiation and steps B and C are termination