Asked by phia

Which is the best fertilizer for Mr. Jimenez’ backyard grass? Select the type of study most appropriate to the question.

A. Experimental
B. Experimental blinded
C. Case-controlled observational
D. Observational

My answer is C
Answered by PsyDAG
Disagree.
Answered by Tonya
I believe it is B
Answered by Angela
I believe it's B