The impacts of loss of biodiversity may lead to:
$I$. Lowered resistance to environmental perturbation
$II$. Decrease in plant production
$III$. Increased variability in ecosystem processes like water use,pest/disease cycle,and plant productivity
$IV$. Increase in plant production
Choose the correct option.

• A
  $I$ and $II$
• B
  $I$ and $IV$
• C
  $I$ and $III$
• D
  $I$,$II$ and $III$