Marine snow consists of organic particles that drift from the surface of the ocean to the deep sea. It is made up of dead plankton, fecal matter, and other organic materials. As these particles sink, they carry nutrients with them. Therefore, the deep ocean is where you would expect to find a higher concentration of nutrients derived from marine snow.
While the surface waters of the ocean can have high nutrient levels in certain areas, such as upwelling zones, overall, the deep ocean would generally be considered to have more nutrients due to the accumulation of marine snow over time.
So the answer is: 2) the deep ocean.