Where is the coldest air to be found, in an occlusion with cold front characteristics?

Question

Question ATPL - Airline Transport Pilot license - Meteorology

QuizVDS · Accepted Answer

Behind the front.

QuizVDS · Answer

Ahead of the front.

QuizVDS · Answer

At the junction of the occlusion.

QuizVDS · Answer

At the surface position of the front.

Id 411 - ATPL - Where is the coldest air to be found, in an occlusion with cold front characteristics?