The correct options are
A The trees here have thick barks and waxy leaves.
B They are found in west and south west regions of the world's continents.
The trees in Mediterranean regions have thick barks and waxy leaves. These adaptations help them store water during the hot summers. This vegetation is mostly found in the areas around the Mediterranean sea in Europe, Africa and Asia. These forests are found in the west and south-west margins of the continent. The natural vegetation of this place is mostly shrubs.