Just look at the picture :)

The answer is d)

Explanation:

The cell will shrink because it is in a hypertonic solution.

This is because, in osmosis, water moves from a higher concentration to a lower concentration of water.

In this question, more water is present inside the cell as the percentage of NaCl (salt) is 0.9%.  There is less water outside the cell as there is 1% of NaCl... So..the water will move outside the cell and the cell will shrink.

Also, the type of solution given is called a hypertonic solution.

Hypertonic solution: If the medium has a lower concentration of water than the cell, it is a hypertonic solution.

Hope it helps.

b is dominant over the allele for the white fur.