All of the Following Are Correct About Oligotrophic Lakes Except

Multiple Choice

All of the following are correct about oligotrophic lakes except:

A) they have an abundance of minerals and organic material
B) they are often deeper than eutrophic lakes
C) their deep water is rich in oxygen
D) they are highly susceptible to pollution from fertilizer runoff
E) they are highly susceptible to detergent and sewage contamination