The correct options are
C These are dense forests with a very large variety of trees, plants, creepers, etc.
D These forests are always green as the trees shed their old leaves but get new leaves very soon.
Regions which get very high rainfall and also have a very warm climate like equatorial regions, have evergreen forests. These are dense forests with a very large variety of trees, plants, creepers, etc. These forests are always green as the trees shed their old leaves but get new leaves very soon.