Select Which One of the Types of Research Is the Most

Multiple Choice

Select which one of the types of research is the most appropriate for each question.
-Does a preoperative visit from a speech therapist improve postoperative alaryngeal speech?

A) Causal comparative research.
B) Correlational research.
C) Survey research.
D) Experimental research .
E) Survey research
F) Correlational research
G) Experimental research