Which Statement About Bertness and Shumway's Studies of Succession in a New

Multiple Choice

Which statement about Bertness and Shumway's studies of succession in a New England salt marsh is true?

A) The researchers manipulated the environment by removing seed predators in some of the plots.
B) These studies provide support for the facilitation model as the predominant explanation for succession in salt marshes under a wide range of conditions.
C) These studies provide support for the inhibition model as the predominant explanation for succession in salt marshes under a wide range of conditions.
D) The studies showed that the trajectory of succession in these salt marshes can be altered by changing the salinity of the soil.