Answer D is correct, Wikipedia says that they move water from roots to stems and leaves.
Kelp forests are found in cold, nutrient-rich water and are found in the shallow coast. Kelp forests have a very high salinity
The FOIL method is used to multiply binomials, or to multiply (x + 3) by (3x -12) for example. Then multiply the OUTSIDE terms together, or x and -12 to get -12x. Then multiply the INSIDE terms together, or 3 and 3x to get 9x. The multiply the LAST terms together, or 3 and -12 to get -36.