When researchers feel that an analogue study is too contrived to represent what goes on in real life accurately, they are likely to resort to what type of study instead? ?

I believe the answer is field study.
field study refers to the collection of information and data outside laboratory environment in order to strengthen the conclusion made by the researchers.
The information that acquired through field study usually revolves around task flows, inefficiencies, and physical environments 

D. is righta is wrong because consumers can be carnivores and omnivores not just herbivoresb is wrong because producers are plantsc is wrong because producers are plantsso d is righthope this !