Before launching its latest line of environment-friendly and child-friendly wooden toys, a toy manufacturer gave samples of those toys to a large and culturally diverse set of families. It then conducted a survey where the parents were asked to rate the toys on a step-wise scale of "not satisfied" to "extremely pleased." This is an example of _____ research.
A. quantitative
B. analytical
C. descriptive
D. deductive
E. explanatory
Answer: A. quantitative