Read the following statements:
$I.$ Species diversity increases as we move away from the equator towards the poles.
$II.$ Stellar's sea cow and passenger pigeon got extinct due to overexploitation by man.
$III.$ Lantana and Eichhornia are invasive weed in India.
$IV.$ The historic convention on biological diversity was held in $1992.$
Choose the option containing correct statements.

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