The correct options are
C Acacia
D Nilgiri
Acacia and Nilgiri are two imported species of trees that were planted by the government as a part of a social forestry project.
Eucalyptus is a genus of over seven hundred species of flowering trees, shrubs or mallees in the myrtle family, Myrtaceae. Along with other genera in the tribe Eucalypteae, they are commonly known as eucalypts.