Given below are a few statements related to biodiversity. Pick those that correctly describe the concept of biodiversity.
$(i)$ Biodiversity refers to the different species of flora and fauna present in an area.
$(ii)$ Biodiversity refers to only the flora of a given area.
$(iii)$ Biodiversity is greater in a forest.
$(iv)$ Biodiversity refers to the total number of individuals of a particular species living in an area.

• A
  $(i)$ and $(ii)$
• B
  $(ii)$ and $(iv)$
• C
  $(ii)$ and $(iii)$
• D
  $(i)$ and $(iii)$