Which of the statement about the toxicity of mercury in the environment is correct?

A、Inorganicmercury>elementalmercury>organicmercury;
B、Organicmercury>elementalmercury>inorganicmercury;
C、Elementalmercury>inorganicmercury>organicmercury;
D、Inorganicmercury>organicmercury>elementalmercury