Question id 192 - Meteorology - ATPL - Airline Transport Pilot license

At the rear of the occlusion is colder than the cold air ahead.
Ahead of the surface position of the occlusion is only at a higher altitude.
At the rear of the occlusion is colder than the cold air ahead, with the warm air at a higher altitude.
At the rear of the occlusion is less cold than the cold air ahead, with the warm air at a higher altitude.