Which of the Following Statements Is Not True Regarding the Halogenation

Multiple Choice

Which of the following statements is not true regarding the halogenation of alkanes upon treatment with halogen and light?

A) bromination is more selective for 3 $\degree$ positions than chlorination
B) the reaction proceeds via a radical intermediate
C) the reaction proceeds via a chain reaction
D) this is a useful process for the formation of fluorides, chlorides, bromides and iodides