Answer the following question:
An organic compound (A), which is a saturated hydrocarbon, reacts with (B), a halogen, in the presence of sunlight to form (C) and (D). Identify the substance (A), (B), (C), and (D) and name the chemical process involved.
i. Substance A is
ii. substance B is
iii. Substance C and D is
iv. Name of the reaction involved is