New Zealand has a population of about 3.8 million, ____ about fourteen percent are Mori.

New Zealand has a population of about 3.8 million, ____ about fourteen percent are Mori

1. A.
   about which
2. B.
   for which
3. C.
   during which
4. D.
   of which

New Zealand has a population of about 3.8 million, ____ about fourteen percent are Mori.

  A. about which    B. for  which      C. during which      D. of  which

New Zealand has a population of about 3.8 million, ____ about fourteen percent are Mori.