DIs incorrect because water would be moving out of the cell. It would be in a hypertonic solution, causing it to shrivel.
C) Is incorrect because land vertebrates have kidneys
B) Is incorrect because when salt is consumed in a larger quantity (salt water) the body will signal the kidneys to filter out more salt - dehydrating the organism. Essentially, the body would need to excrete more water/urine
So, answer (A) is correct.
Due to the kidney's inability to filter out so much salt, the kidneys have a larger water output (which dilutes the salts).
