The correct answer for this question would be A) Nnew = Nold.
I presume your question is, how many chromosomes would be found in the resulting daughter cells of meiosis?
If parent cell has 16 chromosomes, the first division in Meiosis of the cell will result in 8 chromosomes, and the second division (I.e. the separation of the sister chromatids of the 8 chromosomes) results in 8 daughter chromosomes.
The number of chromosomes in each cell resulting from meiosis is 8.
Hope this helps! :)
