Explanation:

2nd option is correct.
Presence of prominent polar front and stratospheric clouds; and inflow of chlorofluorocarbons could be sited as most appropriate reason for formation of ozone hole in Antarctic region.

Third option is correct.
Reasons for the formation of ozone hole in Antarctica are given below-
• Meteorologically, the atmosphere above Antarctica is largely isolated from the rest of the world, a phenomenon called the 'polar vortex.' It’s essentially a persistent, giant cyclone over the Antarctic continent. Therefore, the loss of ozone there isn't replaced quickly with influx from the surrounding atmosphere.
• The reaction that breaks CFCs up to release chlorine ions occurs under very, very cold conditions and when high energy (ultraviolet) photons are present. During the winter in the Antarctica, the stratosphere becomes cold enough for the reaction to occur and in the early spring when the stratosphere starts to receive sunlight again, UV light causes the reaction.
• Another phenomenon of the Antarctica stratosphere, and sometimes the Arctic stratosphere, is that it becomes cold enough for ice to crystallize out (approximately -80 degrees), creating polar stratospheric clouds (PSCs). Reactions on these ice crystals speed up the chlorine ion production which depletes the ozone faster, so there is a correlation between PCSs and ozone depletion thus PSC monitoring is part of the data collected when assessing ozone depletion.
• CFCs are everywhere in the atmosphere and ozone depletion due to CFCs occurs worldwide, but in the Antarctic and Arctic, where the stratosphere becomes cold enough for PSCs, ozone depletion is most severe.